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Acute accent

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◌́
Acute accent
U+0301 ◌́ COMBINING ACUTE ACCENT (diacritic)
See also

The acute accent (´, ◌́), is a diacritic used in many modern written languages with alphabets based on the Latin, Cyrillic, and Greek scripts. For the most commonly encountered uses of the accent in the Latin and Greek alphabets, precomposed characters are available.

Uses

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History

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An early precursor of the acute accent was the apex, used in Latin inscriptions to mark long vowels.

The acute accent was first used in French in 1530 by Geoffroy Tory, the royal printer.[1]

Pitch

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Ancient Greek

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The acute accent was first used in the polytonic orthography of Ancient Greek, where it indicated a syllable with a high pitch. In Modern Greek, a stress accent has replaced the pitch accent, and the acute marks the stressed syllable of a word. The Greek name of the accented syllable was and is ὀξεῖα (oxeîa, Modern Greek oxía) "sharp" or "high", which was calqued (loan-translated) into Latin as acūta "sharpened".

Stress

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The acute accent marks the stressed vowel of a word in several languages:

  • Asturian[2]
  • Belarusian
  • Blackfoot uses acute accents to show the place of stress in a word, for example, soyópokistsi (transl. "leaves").
  • Bulgarian: stress, which is variable in Bulgarian, is not usually indicated in Bulgarian except in dictionaries and sometimes in homonyms that are distinguished only by stress. However, Bulgarian usually uses the grave accent to mark the vowel in a stressed syllable, unlike Russian and Ukrainian, which use the acute accent.
  • Catalan uses it in stressed vowels: é, í, ó, ú.
  • Dutch uses it to mark stress (vóórkomenvoorkómen, meaning occur and prevent respectively) or a more closed vowel (, equivalent to English hey and heh) if it is not clear from context. Sometimes, it is simply used for disambiguation, as in ééneen, meaning "one" and "a(n)".
  • Galician
  • Hopi has acute to mark a higher tone.
  • Italian The accent is used to indicate the stress in a word, or whether the vowel is "open" or "wide", or "closed", or "narrow". For example, pèsca [ˈpɛska] "peach" ("open" or "wide" vowel, as in "pen") and pésca [ˈpeska] "fishing" ("closed" or "narrow" vowel, as in "pain"). However, in some regional accents, these words can be pronouned the same way, or even with opposite values.
  • Lakota. For example, kákhi "in that direction" but kakhí "take something to someone back there".
  • Leonese uses it for marking stress or disambiguation.
  • Modern Greek marks the stressed vowel of every polysyllabic word: ά (á), έ (é), ή (í), ί (í), ό (ó), ύ (ý), ώ (ó).
  • Navajo where the acute marks a higher tone.
  • Norwegian, Swedish and Danish use the acute accent to indicate that a terminal syllable with the e is stressed and is often omitted if it does not change the meaning: armen (first syllable stressed) means "the arm" while armé(e)n means "the army"; ide (first syllable stressed) means "bear's den" in Swedish,[3] while idé means "idea". Also stress-related are the different spellings of the words en/én and et/ét (the indefinite article and the word "one" in Danish and Norwegian). In Norwegian, however, the neuter word "one" is spelled ett. Then, the acute points out that there is one and only one of the object, which derives from the obsolete spelling(s) een and eet. Some loanwords, mainly from French, are also written with the acute accent, such as Norwegian and Swedish kafé and Danish café (also cafe).
  • Occitan
  • Portuguese: á, é, í, ó, ú. It may also indicate height (see below).
  • Russian. Syllabic stress is irregular in Russian, and in reference and teaching materials (dictionaries and books for children or foreigners), stress is indicated by an acute accent above the stressed vowel, e.g. соба́ка (Russian pronunciation: [sɐˈbakə], dog), as follows: а́, е́, и́, о́, у́, ы́, э́, ю́, я́. The acute accent can be used both in the Cyrillic and sometimes in the romanised text.
  • Spanish marks stressed syllables in polysyllabic words that deviate from the standardized stress patterns. In monosyllabic words, it is used to distinguish homophones, e.g.: el (the) and él (he).
  • Tagalog dictionaries including other Philippine languages use the acute accent to mark a vowel in a syllable with lexical stress (Diín) and avoid ambiguity. Combinations include á, í, ó, and ú while é is the rarest one. Since they are not part of the official alphabet, these vowels do not affect the order of each letter. Vowels with a stress at the first syllable are left unwritten and serves as the default word. For example, baka (cow) and baká (maybe).
  • Ukrainian: sometimes added to mark syllabic stress, when it can help to distinguish between homographs: за́мок 'castle' vs. замо́к 'lock', as follows: а́, е́, є́, и́, і́, о́, у́, ю́, я́. Commonly used in dictionaries, readers, and some children's books.
  • Welsh: word stress usually falls on the penultimate syllable, but one way of indicating stress on a final (short) vowel is by the use of the acute accent. In the Welsh orthography, it can be on any vowel: á, é, í, ó, ú, , or ý. Examples: casáu [kaˈsaɨ, kaˈsai] "to hate", sigarét [sɪɡaˈrɛt] "cigarette", ymbarél [əmbaˈrɛl] "umbrella".

Height

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The acute accent marks the height of some stressed vowels in various Romance languages.

  • To mark high vowels:
    • Bislama. One of the two orthographies distinguishes é [e] from e [ɛ].[4] The orthography after 1995 does not distinguish these sounds, and has no diacritics.
    • Catalan. The acute marks the quality of the vowels é [e] (as opposed to è [ɛ]), and ó [o] (as opposed to ò [ɔ]).
    • French. The acute is used on é. It is known as accent aigu, in contrast to the accent grave which is the accent sloped the other way. It distinguishes é French pronunciation: [[e]] from è French pronunciation: [[ɛ]], ê French pronunciation: [[ɛ]], and e French pronunciation: [[ə]]. Unlike in other Romance languages, the accent marks do not imply stress in French.
    • Italian. The acute accent (sometimes called accento chiuso, "closed accent" in Italian) is compulsory only in words of more than one syllable stressed on their final vowel (and a few other words). Words ending in stressed -o are never marked with an acute accent (ó), but with a grave accent (ò). Therefore, only é and è are normally contrasted, typically in words ending in -ché, such as perché ("why/because"); in the conjugated copula è ("is"); in ambiguous monosyllables such as ('neither') vs. ne ('of it') and ('itself') vs. se ('if'); and some verb forms, e.g. poté ("he/she/it could" (past tense)). The symbol ó can be used in the body of a word for disambiguation, for instance between bótte ("barrel") and bòtte ("beating"), though this is not mandatory: in fact standard Italian keyboards lack a dedicated ó key.
    • Occitan. The acute marks the quality of the vowels é [e] (as opposed to è [ɛ]), ó [u] (as opposed to ò [ɔ]) and á [ɔ/e] (as opposed to à [a]).
    • Scottish Gaelic (a Celtic rather than Romance language) uses/used a system in which é [eː] is contrasted with è [ɛː] and ó [oː] with ò [ɔː]. Both the grave and acute indicate length; é/è and ó/ò are thus contrasted with e [ɛ/e] and o [ɔ/o/ɤ] respectively. Besides, á appears in the words á [a], ám [ãũm] and ás [as] in order to distinguish them from a [ə], am [əm] and as [əs] respectively.[5][6] The other vowels (i and u) only appear either without an accent or with a grave. Since the 1980s the SQA (which sets school standards and thus the de facto standard language) and most publishers have abandoned the acute accent, using grave accents in all situations (analogous to the use of the acute in Irish). However, universities, some publishers and many speakers continue to use acute accents.
  • To mark low vowels:
    • Portuguese. The vowels á /a/, é /ɛ/ and ó /ɔ/ are stressed low vowels, in opposition to â /ɐ/, ê /e/ and ô /o/ which are stressed high vowels. However, the accent is only used in words whose stressed syllable is in an unpredictable location within the word: where the location of the stressed syllable is predictable, no accent is used, and the height of the stressed vowel cannot then usually be determined solely from the word's spelling.

Length

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Long vowels

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  • Arabic and Persian: ⟨á, í, ú⟩ were used in western transliteration of Islamic language texts from the 18th to early 20th centuries. Representing the long vowels, they are typically transcribed with a macron today except in Bahá'í orthography.
  • Classical Latin: sometimes used to represent the apex in modern orthography.
  • Czech: ⟨á, é, í, ó, ú, ý⟩ are the long versions of ⟨a, e, i, o, u, y⟩. The accent is known as čárka. To indicate a long ⟨u⟩ in the middle or at the end of a word, a kroužek ("ring") is used instead, to form ⟨ů⟩.
  • Hungarian: ⟨í, ó, ú⟩ are the long equivalents of the vowels ⟨i, o, u⟩. ⟨ő, ű⟩ (see double acute accent) are the long equivalents of ⟨ö, ü⟩. Both types of accents are known as hosszú ékezet (hosszú means long). The letters ⟨á⟩ and ⟨é⟩ are the long equivalents of ⟨a⟩ and ⟨e⟩ respectively, but they are also distinct in quality: [aː] and [eː] rather than *[ɒː] and *[ɛ:] (see below in Letter extension).
  • Irish: ⟨á, é, í, ó, ú⟩ are the long equivalents of the vowels ⟨a, e, i, o, u⟩, the accent affects pronunciation and meaning, e.g. Seán ("John") but sean ("old").[7] The accent is known as a (síneadh) fada [ˌʃiːnʲə ˈfˠad̪ˠə] ("long (sign)"), which is also used in Hiberno-English.
  • Old Norse: ⟨á, é, í, ó, ú, ý⟩ are the long versions of ⟨a, e, i, o, u, y⟩. Sometimes, ⟨ǿ⟩ is used as the long version of ⟨ø⟩, but ⟨œ⟩ is used more often. Sometimes, the short-lived Old Icelandic long ⟨ǫ⟩ (also written ⟨ö⟩) is written using an acute-accented form, ⟨ǫ́⟩, or a version with a macron, ⟨ǭ⟩, but usually it is not distinguished from ⟨á⟩ from which it is derived by u-mutation.
  • Slovak: the acute accent is called dĺžeň in Slovak. In addition to the long vowels ⟨á, é, í, ó, ú, ý⟩, dĺžeň is used to mark syllabic consonants ⟨ŕ, ĺ⟩, which are the long counterparts of syllabic ⟨r, l⟩.

Short vowels

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  • Ligurian: in the official orthography, é is used for short [e], and ó is used for short [u].

Palatalization

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A graphically similar, but not identical, mark is indicative of a palatalized sound in several languages.

In Polish, such a mark is known as a kreska ("stroke") and is an integral part of several letters: four consonants and one vowel. When appearing in consonants, it indicates palatalization, similar to the use of the háček in Czech and other Slavic languages (e.g. sześć [ˈʂɛɕt͡ɕ] "six"). However, in contrast to the háček which is usually used for postalveolar consonants, the kreska denotes alveolo-palatal consonants. In traditional Polish typography, the kreska is more nearly vertical than the acute accent, and placed slightly right of center.[8] A similar rule applies to the Belarusian Latin alphabet Łacinka. However, for computer use, Unicode conflates the codepoints for these letters with those of the accented Latin letters of similar appearance.

In Serbo-Croatian, as in Polish, the letter ⟨ć⟩ is used to represent a voiceless alveolo-palatal affricate /t͡ɕ/.

In the romanization of Macedonian, ⟨ǵ⟩ and ⟨ḱ⟩ represent the Cyrillic letters ⟨ѓ⟩ (Gje) and ⟨ќ⟩ (Kje), which stand for palatal or alveolo-palatal consonants, though ⟨gj⟩ and ⟨kj⟩ (or ⟨đ⟩ and ⟨ć⟩) are more commonly used for this purpose[citation needed]. The same two letters are used to transcribe the postulated Proto-Indo-European phonemes /ɡʲ/ and /kʲ/.

Sorbian uses the acute for palatalization as in Polish: ⟨ć dź ń⟩. Lower Sorbian also uses ⟨ŕ ś ź⟩, and Lower Sorbian previously used ⟨ḿ ṕ ẃ⟩ and ⟨b́ f́⟩, also written as ⟨b' f'⟩; these are now spelt as ⟨mj pj wj⟩ and ⟨bj fj⟩.

Tone

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In the Quốc Ngữ system for Vietnamese, the Yale romanization for Cantonese, the Pinyin romanization for Mandarin Chinese, and the Bopomofo semi-syllabary, the acute accent indicates a rising tone. In Mandarin, the alternative to the acute accent is the number 2 after the syllable: lái = lai2. In Cantonese Yale, the acute accent is either tone 2, or tone 5 if the vowel(s) are followed by 'h' (if the number form is used, 'h' is omitted): má = ma2, máh = ma5.

In African languages and Athabaskan languages, it frequently marks a high tone, e.g., Yoruba apá 'arm', Nobiin féntí 'sweet date', Ekoti kaláwa 'boat', Navajo tʼáá 'just'.

The acute accent is used in Serbo-Croatian dictionaries and linguistic publications to indicate a high-rising accent. It is not used in everyday writing.

Disambiguation

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The acute accent is used to disambiguate certain words which would otherwise be homographs in the following languages:

  • Catalan. Examples: són "they are" vs. son "tiredness", més "more" vs. mes "month".
  • Danish. Examples: én "one" vs. en "a/an"; fór "went" vs. for "for"; véd "know(s)" vs. ved "by"; gǿr "bark(s)" vs. gør "do(es)"; dǿr "die(s)" vs. dør "door"; allé "alley" vs. alle "everybody". Furthermore, it is also used for the imperative form of verbs ending in -ere, which lose their final e and might be mistaken for plurals of a noun (which most often end in -er): analysér is the imperative form of at analysere "to analyse", analyser is "analyses", plural of the noun analyse "analysis". Using an acute accent is always optional, never required.
  • Dutch. Examples: één "one" vs. een "a/an"; vóór "before" vs. voor "for"; vóórkomen "to exist/to happen" vs. voorkómen "to prevent/to avoid". Using an acute accent is mostly optional.
  • Modern Greek. Although all polysyllabic words have an acute accent on the stressed syllable, in monosyllabic words the presence or absence of an accent may disambiguate. The most common case is η, the feminine definite article ("the"), versus ή, meaning "or". Other cases include που ("who"/"which") versus πού ("where") and πως ("that", as in "he told me that...") versus πώς ("how").
  • Norwegian. It is used to indicate stress on a vowel otherwise not expected to have stress. Most words are stressed on the first syllable and diacritical marks are rarely used. Although incorrect, it is frequently used to mark the imperative form of verbs ending in -ere as it is in Danish: kontrollér is the imperative form of "to control", kontroller is the noun "controls". The simple past of the verb å fare, "to travel", can optionally be written fór, to distinguish it from for (preposition "for" as in English), fôr "feed" n./"lining", or fòr (only in Nynorsk) "narrow ditch, trail by plow" (all the diacritics in these examples are optional.[9])
  • Russian. Acute accents (technically, stress marks) are used in dictionaries to indicate the stressed syllable. They may also be optionally used to disambiguate both between minimal pairs, such as за́мок (read as zámak, means "castle") and замо́к (read as zamók, means "lock"), and between question words and relative pronouns such as что ("what", stressed, or "that", unstressed), similarly to Spanish. This is rare, however, as usually meaning is determined by context and no stress mark is written. The same rules apply to Ukrainian, Rusyn, Belarusian and Bulgarian.
  • Spanish. Covers various question word / relative pronoun pairs where the first is stressed and the second is a clitic, such as cómo (interrogative "how") and como (non-interrogative "how", comparative "like", "I eat"[10]), differentiates qué (what) from que (that), and some other words such as "you" and tu "your," "tea" and te "you" (direct/indirect object), él "he/him" and el ("the", masculine). This usage of the acute accent is called tilde diacrítica.

Emphasis

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  • In Danish, the acute accent can also be used for emphasis, especially on the word der (there), as in Der kan ikke være mange mennesker dér, meaning "There can't be many people there" or Dér skal vi hen meaning "That's where we're going".
  • In Dutch, the acute accent can also be used to emphasize an individual word within a sentence. For example, Dit is ónze auto, niet die van jullie, "This is our car, not yours." In this example, ónze is merely an emphasized form of onze. Also in family names like Piét, Piél, Plusjé, Hofsté. The IJ digraph can be stressed with íj́ but is usually stressed as íj for technical reasons.
  • In the Armenian script emphasis on a word is marked by an acute accent above the word's stressed vowel; it is traditionally grouped with the Armenian question and exclamation marks which are also diacritics applied to the stressed vowel.

Letter extension

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  • In Faroese, the acute accent is used on five of the vowels (a, i, o, u and y), but these letters, á, í, ó, ú and ý are considered separate letters with separate pronunciations.
    á: long [ɔa], short [ɔ] and before [a]: [õ]
    í/ý: long [ʊiː], short [ʊi]
    ó: long [ɔu], [ɛu] or [œu], short: [œ], except Suðuroy: [ɔ]
    When ó is followed by the skerping -gv, it is pronounced [ɛ], except in Suðuroy where it is [ɔ]
    ú: long [ʉu], short [ʏ]
    When ú is followed by the skerping -gv, it is pronounced [ɪ]
  • In Hungarian, the acute accent marks a difference in quality on two vowels, apart from vowel length:
    The (short) vowel a is open back rounded (ɒ), but á is open front unrounded (a) (and long).
    Similarly, the (short) vowel e is open-mid front unrounded (ɛ), while (long) é is close-mid front unrounded (e).
    Despite this difference, in most of the cases, these two pairs are arranged as equal in collation, just like the other pairs (see above) that only differ in length.
  • In Icelandic the acute accent is used on all 6 of the vowels (a, e, i, o, u and y), and, like in Faroese, these are considered separate letters.
    A sample extract of Icelandic.
    á: [au(ː)]
    é: long [jeɛː], short [jɛ]
    í/ý: [i(ː)]
    ó: [ou(ː)]
    ú: [u(ː)]
    All can be either short or long, but the pronunciation of é is not the same short and long.
    Etymologically, vowels with an acute accent in these languages correspond to their Old Norse counterparts, which were long vowels but in many cases have become diphthongs. The only exception is é, which in Faroese has become æ.
  • In Kashubian, Polish, and Sorbian, the acute on "ó", historically used to indicate a lengthening of "o" [ɔ], now indicates higher pronunciation, [o] and [u], respectively.
  • In Turkmen, the letter ý is a consonant: [j], whereas the letter y is a vowel: [ɯ].

Other uses

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  • In some Basque texts predating Standard Basque, the letters ⟨r⟩ and ⟨l⟩ carry acute accents (an invention by Sabino Arana[11]), which are otherwise indicated by double letters. In such cases, ⟨ŕ⟩ is used to represent ⟨rr⟩ (a trilled ⟨r⟩, this spelling is used even at the end of a syllable,[12] to differentiate from -⟨r⟩-, an alveolar tap – in Basque /r/ in word-final positions is always trilled) and ⟨ĺ⟩ for ⟨ll⟩ (a palatalized /l/).
  • In transliterating texts written in Cuneiform, an acute accent over the vowel indicates that the original sign is the second representing that value in the canonical lists. Thus su is used to transliterate the first sign with the phonetic value /su/, while transliterates the second sign with the value /su/.[clarification needed]
  • In Emilian, é ó denote both length and height, representing [e, o].
  • In Indonesian dictionaries, ⟨é⟩ is used to represent /e/, while ⟨e⟩ is used to represent /ə/.
  • In Northern Sámi, an acute accent was placed over the corresponding Latin letter to represent the letters peculiar to this language (Áá, Čč, Đđ, Ŋŋ, Šš, Ŧŧ, Žž) when typing when there was no way of entering these letters correctly otherwise.[13]
  • Many Norwegian words of French origin retain an acute accent, such as allé, kafé, idé, komité. Popular usage can be sketchy and often neglects the accent, or results in the grave accent erroneously being used in its place. Likewise, in Swedish, the acute accent is used only for the letter ⟨e⟩, mostly in words of French origin and in some names. It is used both to indicate a change in vowel quantity as well as quality and that the stress should be on this, normally unstressed, syllable. Examples include café ("café") and resumé ("résumé", noun). There are two pairs of homographs that are differentiated only by the accent: armé ("army") versus arme ("poor; pitiful", masculine gender) and idé ("idea") versus ide ("winter quarters").
  • ⟨Ǵǵ⟩ and ⟨Źź⟩ are used in Pashto in the Latin alphabet, equivalent to ږ and ځ, respectively.
  • In Romagnol, é ó denote both length and height, representing [eː, oː].

English

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As with other diacritical marks, a number of (usually French) loanwords are sometimes spelled in English with an acute accent as used in the original language: these include attaché, blasé, canapé, cliché, communiqué, café, décor, déjà vu, détente, élite, entrée, exposé, mêlée, fiancé, fiancée, papier-mâché, passé, pâté, piqué, plié, repoussé, résumé, risqué, sauté, roué, séance, naïveté and touché. Retention of the accent is common only in the French ending é or ée, as in these examples, where its absence would tend to suggest a different pronunciation. Thus the French word résumé is commonly seen in English as resumé, with only one accent (but also with both or none).

Acute accents are sometimes added to loanwords where a final e is not silent, for example, maté from Spanish mate, the Maldivian capital Malé, saké from Japanese sake, and Pokémon from the Japanese compound for pocket monster, the last three from languages which do not use the Roman alphabet, and where transcriptions do not normally use acute accents.

For foreign terms used in English that have not been assimilated into English or are not in general English usage, italics are generally used with the appropriate accents: for example, coup d'état, pièce de résistance, crème brûlée and ancien régime.

The acute accent is sometimes (though rarely) used for poetic purposes:

  • It can mark stress on an unusual syllable: for example, caléndar to indicate [kəˈlɛn.dɚ] (rather than the standard [ˈkæl.ən.dɚ]).
  • It can disambiguate stress where the distinction is metrically important: for example, rébel (as opposed to rebél), or áll trádes, to show that the phrase is pronounced as a spondee, rather than the more natural iamb.
  • It can indicate the sounding of an ordinarily silent letter: for example, pickéd to indicate the pronunciation [ˈpɪkɪd], rather than standard [pɪkt] (the grave accent is more common for this last purpose).

The layout of some European PC keyboards, combined with problematic keyboard-driver semantics, causes some users to use an acute accent or a grave accent instead of an apostrophe when typing in English (e.g. typing John´s or John`s instead of John's).[14]

Typographic form

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Acute accent in multiple fonts.
Acute accent in multiple computer fonts. Gray letters indicate o kreska in the provided font. Notice that kreska in gray letters are steeper than acute accent in black letters. Also in Adobe HeiTi Std and SimSun, the stroke goes from bottom-left (thicker) to top-right (thinner), showing the rising nature of the tone; however, the acute accent in SimHei is made without variation in thickness.

Western typographic and calligraphic traditions generally design the acute accent as going from top to bottom. French even has the definition of acute is the accent «qui va de droite à gauche» (English: "which goes from right to left"),[15] meaning that it descends from top right to lower left.

In Polish, the kreska diacritic is used instead, which usually has a different shape and style compared to other European languages. It features a more vertical steep form and is moved more to the right side of center line than acute. As Unicode does not differentiate the kreska from the acute, letters from Western (computer) fonts and Polish fonts have had to share the same set of code points, which make designing the conflicting character (i.e. o acute, ⟨ó⟩) more troublesome. OpenType tried to solve this problem by giving language-sensitive glyph substitution to designers, such that the font would automatically switch between Western ⟨ó⟩ and Polish ⟨ó⟩ based on language settings.[8] New computer fonts are sensitive to this issue and their design for the diacritics tends toward a more "universal design" so that there will be less need for localization, for example Roboto and Noto typefaces.[16]

Pinyin uses the acute accent to mark the second tone (rising or high-rising tone), which indicates a tone rising from low to high, causing the writing stroke of acute accent to go from lower left to top right. This contradicts the Western typographic tradition which makes designing the acute accent in Chinese typefaces a problem. Designers approach this problem in 3 ways: either keep the original Western form of going top right (thicker) to bottom left (thinner) (e.g. Arial/Times New Roman), flip the stroke to go from bottom left (thicker) to top right (thinner) (e.g. Adobe HeiTi Std/SimSun), or just make the accents without stroke variation (e.g. SimHei).[17]

Unicode

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Unicode encodes a number of cases of "letter with acute accent" as precomposed characters and these are displayed below. In addition, many more symbols may be composed using the combining character facility (U+0301 ◌́ COMBINING ACUTE ACCENT and U+0317 ◌̗ COMBINING ACUTE ACCENT BELOW) that may be used with any letter or other diacritic to create a customised symbol but this does not mean that the result has any standard real-world application and are thus not shown in the table.

Keyboard input

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Computer keyboards sold in many countries have an AltGr ('alternate graphic') key (or Option key) which adds a third and (with the Shift key) fourth effect to most keys. Thus AltGr+a produces á and AltGr+A produces Á. (Most languages require diacritics ('accents') and thus an 'extended' or national keyboard mapping is required. Where US standard keyboards are supplied, typically it is controlled by a localised keyboard mapping so that the right-Alt key behaves as an AltGr key.)

Because keyboards have only a limited number of keys, US standard keyboards do not have keys for accented characters. An alternative method is the 'dead key', a key that modifies the meaning of the next key press. This method was used with typewriters where, when the typist typed an accent, the carriage did not move as usual with the effect that the next letter would be written on the same place on the paper. An appropriate keyboard mapping (such as US-International) provides this function via the right-hand Alt key. Thus RightAlt+' (apostrophe) is a dead key so appears to have no effect until the next key is pressed, when it adds the desired acute accent.

See also

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References

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The acute accent is a diacritical mark (´) placed above a letter, typically a vowel, in various writing systems based on the Latin, Cyrillic, and Greek alphabets to indicate modifications in pronunciation, such as stress placement, pitch, or vowel quality.[1] It appears in numerous languages worldwide, serving distinct phonetic roles depending on the orthographic tradition.[2] Originating in ancient Greek, the acute accent was initially employed to denote a high musical pitch on a syllable within the language's pitch accent system, distinguishing it from the grave accent for low pitch and the circumflex for a pitch contour.[3] According to ancient grammarians, it marked elevated tone on short vowels, contributing to the prosodic structure of words in classical texts.[4] Over time, as Greek evolved and influenced other scripts, the acute accent adapted to represent stress rather than pitch in many descendant languages during the Hellenistic and medieval periods.[5] In modern usage, the acute accent fulfills varied functions across languages. In French, it applies exclusively to the letter e (as in café), signaling the closed vowel sound /e/ rather than the schwa /ə/ or silent e, and it does not affect stress placement.[6][7] In Spanish, it identifies the stressed syllable when it falls outside the default penultimate position, as in adiós where the acute on o marks primary stress on the final syllable.[8] Polish employs the acute accent on multiple vowels to denote specific sounds, such as ó pronounced as /u/ (distinct from plain o /ɔ/), and on consonants like ć to indicate palatalization.[1] In modern Greek, it primarily indicates word stress on the accented vowel, replacing the more complex ancient pitch system with a stress-based one.[9] These applications highlight the acute accent's role in clarifying ambiguity, preserving etymological distinctions, and guiding readers in accurate articulation.[8]

Historical Development

Origins and Etymology

The acute accent (´) originated in the Hellenistic period as a diacritic in ancient Greek orthography. It was invented around 200 BC by the scholar Aristophanes of Byzantium, who developed a system of prosodic signs to indicate the pitch variations in spoken Greek. This system included the acute accent to mark the rising intonation or high pitch on a syllable, distinguishing it from other tones in the language's pitch accent system. Aristophanes' innovation aimed to aid in the accurate recitation of texts, ensuring that the melodic contours of speech were preserved in writing, and the acute was described as a straight, upward-tending mark ending in a point, evoking the image of a launched projectile. The term "acute accent" derives from the Latin accentus acutus, where acutus means "sharp" or "pointed," a direct calque of the ancient Greek oxýs (ὀξύς), also signifying sharpness. This nomenclature reflects the diacritic's visual form—a slanted, upward stroke that contrasts with the downward-sloping grave accent (`), emphasizing its role in denoting elevation or intensity in pitch. The Latin adoption of the term occurred as Greek scholarly traditions influenced Roman linguistics, with the acute's shape literally embodying the idea of acuteness or pointedness.[10] In early Latin orthography, a precursor to the modern acute accent appeared as the apex, a diacritic used in inscriptions from the late Roman Republic (around 104 BC to 200 AD) to indicate long vowels. The apex resembled a small acute mark placed above or to the right of a vowel, such as in málus to denote length, serving a quantitative rather than stress-based function in Classical Latin pronunciation. Over time, this mark evolved in later traditions, transitioning toward its contemporary use as a stress indicator in various languages, though the original apex was primarily epigraphic and fell out of widespread use by late antiquity.[11] The acute accent is distinct from similar-looking marks in other orthographies, such as the apostrophe (') used for elision or possession, which lacks the acute's consistent slant and phonetic intent. In Polish, the hacček or kreska (a stroke resembling the acute over consonants like ć or ś) indicates palatalization rather than pitch or stress, and while graphically akin, it functions as a separate grapheme modifier without the acute's historical ties to tonal systems. These distinctions highlight the acute's unique evolution from pitch marking to a versatile diacritic across scripts.[12]

Evolution in Greek and Latin

In the polytonic orthography of ancient Greek, developed in the Hellenistic period, the acute accent, known as the oxeia (ὀξεῖα), served primarily to denote a high rising pitch on a vowel or diphthong within a word's final three syllables. This system, comprising the acute, grave (baria, βαρία), and circumflex (perispōménos, περισπωμένη) accents, was introduced around the 2nd century BCE by the Alexandrian scholar Aristophanes of Byzantium to standardize the notation of prosody in classical texts.[13] The acute specifically indicated an acute rise in pitch, distinguishing it from the grave's level or falling low pitch and the circumflex's high-to-low contour, thereby aiding in the faithful recitation of poetry where pitch variations were crucial for rhythmic and melodic delivery.[14] Aristophanes' innovation stemmed from efforts to preserve the oral performance traditions of works like Homer's Iliad and Odyssey, where unnoted pitch could lead to misinterpretation in an era when spoken Greek was transitioning toward a stress-based system in Koine dialects.[15] A representative example is the word ánthrōpos (ἄνθρωπος, "human"), where the acute on the initial alpha signals a rising pitch on that syllable, contributing to the word's overall melodic contour in verse recitation. This notation not only captured the pitch accent inherited from Proto-Indo-European but also facilitated textual transmission among scholars at the Library of Alexandria, ensuring that the tonal nuances essential to epic poetry were visually represented for copyists and performers. By the 1st century BCE, subsequent grammarians like Dionysius Thrax refined these marks, embedding them firmly in the polytonic system used for ancient Greek literature.[16] The acute accent's adoption into Latin orthography occurred during the Roman Empire, influenced by Greek scholarly practices, where it functioned initially as the apex—a slanting diacritic resembling the modern acute—to mark long vowels in place of or alongside the horizontal macron. This usage, attested in inscriptions and manuscripts from the late Republic onward, helped distinguish phonemically long vowels (e.g., ā in mālus "apple tree" versus short a in málus "bad"), which were critical for morphology and meter in poetry. The apex was not universally applied but appeared selectively in formal texts, such as legal documents and literary editions, to clarify pronunciation amid the language's evolving phonology.[11] By the 4th century AD, as the Latin language underwent phonetic changes, such as vowel reduction in unstressed syllables, the acute mark increasingly denoted stress position rather than mere length. This evolution aligned with broader prosodic transformations in the Empire's diverse speech communities, where stress on the penult (if heavy) or antepenult became the norm, as reflected in late grammarians' treatises. For instance, in ecclesiastical and post-classical texts, ámen used the acute to emphasize the stressed initial syllable, diverging from earlier length-focused notations like āmēn. This adaptation bridged classical and medieval Latin, influencing Romance languages' stress patterns.[17]

Adoption in Modern Languages

The adoption of the acute accent in modern languages began during the Renaissance, particularly through innovations in printing that facilitated its integration into vernacular orthographies. In French, 16th-century printers such as Robert Estienne played a pivotal role in introducing the acute accent to distinguish vowel qualities in pronunciation. Estienne first employed the acute accent around 1530 to mark closed /e/ sounds in word-final positions (as in é), contrasting with the grave accent for open /ɛ/ (as in è), thereby aiding readers in navigating the evolving phonology of Old French into the modern era.[18][19] This typographic advancement, inspired by classical models but adapted for French needs, spread rapidly with the proliferation of printed texts, influencing subsequent orthographic reforms across Europe.[20] In the Iberian Peninsula, the acute accent gained standardization in the 18th century as part of efforts to regularize stress patterns in Spanish and Portuguese. The Real Academia Española's Orthographia española of 1741 formalized the use of the acute accent to indicate stress on final syllables in words that deviated from default patterns, such as café or jamás, ensuring consistent prosodic representation in printed literature.[21][22] Portuguese orthography followed a parallel path, adopting the acute accent for similar stress-marking purposes by the mid-18th century, though full codification came later through influences from Spanish reforms and Enlightenment-era philology.[23] These changes reflected broader movements toward phonological accuracy in national languages, driven by academies seeking to unify spelling amid expanding literacy. The Enlightenment's emphasis on philological precision further propelled the acute accent's integration into Slavic scripts, particularly in Central Europe. In Czech, philologists like Josef Dobrovský built on earlier medieval innovations to standardize the acute accent (čárka) in the late 18th and early 19th centuries, using it to denote long vowels and distinguish them from short counterparts, as in dál versus dal.[24][25] This reform, rooted in Enlightenment ideals of scientific language description, elevated Czech orthography as a model for other West Slavic languages. Similarly, in Hungarian, the double acute accent—evolving from 18th-century experiments combining umlauts with acutes—emerged during the national linguistic revival, formalized in the 19th century to represent long front rounded vowels (as in ő and ű), reflecting philological efforts to align spelling with native phonetics.[26][27] Colonial expansion extended the acute accent beyond Europe through missionary linguistics, where European orthographers adapted Latin-based scripts for non-European languages to facilitate Bible translations and evangelization. During the 16th to 19th centuries, missionaries in Asia, Africa, and the Americas incorporated the acute accent into nascent writing systems for indigenous tongues, often to mark stress or vowel quality in romanized forms, as seen in early adaptations for languages like those in the Philippines or sub-Saharan Africa.[28][29] This dissemination, tied to colonial infrastructures, embedded the diacritic in hybrid orthographies that persist in postcolonial contexts, though often modified to suit local phonological needs.[30]

Phonological Uses

Pitch and Tone Indication

In Ancient Greek, the acute accent (ὀξύς) was used to mark oxytone syllables, indicating a rising pitch contour that began on the accented syllable and peaked at its end, distinguishing it from the grave accent's falling or level pitch.[31] This pitch-based system, rather than stress, governed prosody in classical texts, with the acute appearing on one of the last three syllables to denote high tone prominence.[32] In tonal languages such as Vietnamese, the acute accent denotes the sắc tone, a high rising pitch that starts at mid-level and ascends sharply, as in /ma˧˥/ meaning "cheek," contrasting with the unmarked ma /ma˧/ meaning "ghost."[33] This diacritic is essential for lexical differentiation, as the rising contour alters word meaning in a language where tone interacts with syllable structure.[34] Similarly, in the romanization of Mandarin Chinese using Hanyu Pinyin, the acute accent marks the second tone, a rising pitch from mid to high level, exemplified by /ma˧˥/ meaning "mother," which rises in intonation to convey the specific tonal contrast.[35] This usage aligns with the language's four main tones plus neutral, where the acute distinguishes the rising pattern from level or falling counterparts. The acute accent's role in indicating rising or high pitch contrasts with the grave accent's association with falling or low tones in various systems; for instance, in Yoruba, an African tonal language, the acute marks high tone (e.g., /kó/ "build" with high tone), while the grave denotes low tone (e.g., /kò/ "reject" with low), preventing homophone confusion through pitch level distinctions.[36][37]

Stress Marking

The acute accent serves as a diacritic to mark primary stress on a syllable in various languages, particularly when the stress position deviates from predictable patterns based on word endings or morphology. It is placed directly over the vowel in the stressed syllable, never on consonants, to clearly indicate the locus of emphasis through increased intensity and duration.[8] In Spanish, the acute accent is mandatory on the stressed vowel in words where stress falls on the final syllable (agudas) and the word ends in a vowel, -n, or -s (unless the -s is preceded by another consonant), as in café pronounced /kaˈfe/, to override the default penultimate stress rule. Similarly, all esdrújulas (antepenultimate stress) and some llanas (penultimate stress) require the accent if they end in a consonant other than -n or -s, ensuring unambiguous prosodic structure. In Portuguese, the rules parallel Spanish: the acute accent obligatorily marks final stressed vowels in oxytone words ending in vowels or certain consonants, such as café /kaˈfɛ/, distinguishing it from default paroxytone patterns, while also signaling open vowel quality under stress.[38] Hungarian employs the acute accent primarily to denote long vowels, but since primary stress is fixed on the initial syllable, it indirectly emphasizes stress on accented (long) vowels in that position, as in ház /haːz/ (house), where the length reinforces the obligatory word-initial prominence without altering stress placement. In languages like English that lack native orthographic stress marking, the acute accent appears in pronunciation guides and dictionaries to denote stressed syllables, particularly for disambiguating homographs; for instance, reˈbel (verb, to revolt) contrasts with ˈrebel (noun, insurgent), using the accent over the second syllable to show secondary or shifted stress patterns in pedagogical contexts.[39]

Vowel Height and Quality

The acute accent plays a significant role in distinguishing vowel height and quality, particularly for mid vowels, by marking close-mid variants in contrast to open-mid or reduced forms across various languages. This function allows the accent to serve as a phonemic marker, altering the timbre of the vowel without necessarily indicating stress or length alone. In phonetic terms, it often signals a raised tongue position, as represented in the International Phonetic Alphabet (IPA) by symbols such as /e/ for close-mid front unrounded versus /ɛ/ for open-mid front unrounded.[6] In French, the acute accent on e specifically denotes the close-mid vowel /e/, distinguishing it from the open-mid /ɛ/ (marked by the grave accent) or the mid-central /ə/ in unstressed positions. This contrast is essential for maintaining phonemic distinctions, as seen in été /e.te/ 'summer', where the accented é produces a tense, higher vowel quality compared to forms like ète /ɛt/ or unaccented ete with schwa. The accent thus refines vowel openness, contributing to the language's seven oral vowel system.[6] In Irish Gaelic, the acute accent (síneadh fada) on e and o indicates long close-mid vowels /eː/ and /oː/, which exhibit a slender quality when flanked by front vowel letters, thereby modifying the overall vowel articulation in the syllable. For instance, /ʃeː/ 'he' uses the acute to mark the raised /eː/, contrasting with shorter or broader variants in other contexts, while /soː/ 'rest' features the close-mid /oː/ in a slender-influenced position. This usage ties vowel height to the language's broad-slender distinction, enhancing phonetic clarity.[40] In Catalan, the acute accent marks stressed close-mid vowels /e/ and /o/, as opposed to open-mid /ɛ/ and /ɔ/ indicated by the grave accent, providing crucial disambiguation in the vowel inventory. For example, avís /əˈbis/ 'notice' places stress on the close /i/, but analogous patterns apply to mid vowels, such as café /kəˈfe/ with close /e/ versus unaccented or grave-marked open forms like cafè /kəˈfɛ/. This system ensures precise representation of vowel frontness and height in stressed syllables.[41]

Length Distinction

In Classical Latin, the acute accent served as the apex, a diacritic mark placed over long vowels to indicate their extended duration, distinguishing them from short vowels in a language where quantity affected meaning and prosody. For instance, the form á represented the long /aː/, as seen in inscriptions and texts where the apex, often shaped like an acute or slanted line, highlighted vowels like those in málus (/ˈmaː.lus/, meaning "apple tree" or "evil"). This usage emerged late in the Old Latin period and was obligatory in formal writing to clarify phonological contrasts, such as ánnus (/ˈanːʊs/, "year") versus annus (/ˈanʊs/, short form). Modern remnants of this length-marking function persist in Faroese, where the acute accent on certain vowels denotes both a distinct quality and prolonged duration, creating contrasts with their unaccented counterparts. Specifically, á is pronounced as a long /ɔː/ or diphthong /ɔaː/, differing from the short a /a/, as in minimal pairs like fára (/ˈfɔːra/, "to travel") versus fara (/ˈfara/, "to go"). This orthographic choice treats accented vowels as separate letters, emphasizing length in stressed syllables while integrating it with the language's complex vowel system.[42] In Northern Sami, one of the Sami languages, the acute accent similarly signals vowel length in minimal pairs, with á representing the long /aː/ in contrast to the short a /a/. For example, áššu (/ˈaːʃːu/, "to push") contrasts with aššu (/ˈaʃːu/, a different form or related term), where the duration alters meaning amid the language's three-way quantity system involving vowels and consonants. This usage underscores length distinctions essential for comprehension in a Uralic language with rich morphological alternations.[43] Unlike the macron, which primarily denotes pure vowel length in modern linguistic notation (e.g., ā for /aː/), the acute accent historically and in these contexts often combines length indication with stress or pitch, as in the Latin apex or Sami prosody, leading to multifunctional interpretations in orthographies where quantity and accent coincide.[44]

Palatalization

The acute accent functions as a diacritic to signal palatal or soft consonant articulation in certain Slavic languages, particularly when the palatalization is not automatically induced by an adjacent front vowel. This usage helps distinguish between hard and soft consonant pairs, reflecting historical phonological shifts where velars and dentals softened before front vowels, leading to new palatal series in the consonant inventory. In Polish, the acute accent (known as the kreska) is applied to the consonants c, s, and z to create ć, ś, and ź, denoting the alveolo-palatal sounds [t͡ɕ], [ɕ], and [ʑ], respectively. This is evident in words like ćma (/ˈt͡ɕma/, "moth"), where the accented ć marks the palatal affricate without a following front vowel. The diacritic is essential because Polish phonology features a rule of palatalization triggered by high vowels i and y ([ɨ]), which soften preceding consonants; the acute explicitly indicates this softness in other positions, such as before back vowels or in consonant clusters. In the Latin script of Croatian and Serbian (Gaj's alphabet), the acute accent modifies c to ć, representing the palatal affricate [t͡ɕ], and is extended in some notations to indicate palatal n and j sounds, such as in ń or accented forms for [ɲ] and [j]. For instance, ćutati (/t͡ɕùːtati/, "to be silent") exemplifies the acute's role in signaling palatal quality. This orthographic choice aligns with the phonological rule in South Slavic languages, where palatalization frequently combines with i or y to produce soft consonants before back vowels or in isolation.[45] These applications in Slavic orthographies stem from broader adoptions in European languages to denote palatalization mechanisms.

Orthographic Uses

Disambiguation of Homographs

The acute accent serves an important orthographic function in several languages by distinguishing homographs—words that are spelled identically but differ in meaning, pronunciation, or grammatical role—thereby reducing ambiguity in written communication. This use leverages the accent's primary role in marking stress, which often correlates with semantic or syntactic differences, allowing readers to infer the intended interpretation without context alone. Such disambiguation is particularly vital in languages where stress patterns are not predictable from spelling, preventing misreadings that could alter comprehension. In Spanish, the acute accent is essential for differentiating interrogative or exclamatory adverbs from their homographic counterparts. For instance, cómo (with the accent) denotes "how" in questions or exclamations, as in "¿Cómo estás?" ("How are you?"), while como (without the accent) functions as a conjunction or preposition meaning "as" or "like," as in "Lo quiero como amigo" ("I like him as a friend"). This distinction follows the orthographic rules established by the Real Academia Española, which mandates the accent on monosyllabic interrogatives to avoid confusion with non-interrogative forms.[46] Portuguese employs the acute accent to resolve homographs by indicating both stress position and vowel quality, which can shift word meanings. A representative pair is avó, accented on the final o to mean "grandmother" with an open vowel sound and stress on the last syllable, versus avo without the accent, referring to a "fraction" (in mathematical or proportional contexts) with stress on the initial syllable and a closed vowel. This pedagogical and orthographic application highlights the accent's role in clarifying polysemous forms, as outlined in standard guides to Portuguese diacritics.[47] In Danish, the acute accent is optionally applied to mark atypical stress and disambiguate minimal pairs, though it is not a compulsory feature of the orthography. This practice, often seen in dictionaries or educational materials, helps prevent ambiguity in words prone to multiple stress interpretations, aligning with Danish conventions for optional diacritics in loanwords or compounds.[48] Across these languages, the acute accent's disambiguating function underscores its utility in standard orthography for handling polysemy, where even subtle stress variations can denote distinct lexical items, enhancing readability and precision in written expression.

Emphasis and Prosody

The acute accent is occasionally employed in English poetry to denote metrical stress, particularly on syllables where the natural pronunciation might lead to ambiguity in scansion. For instance, in iambic verse, it can highlight an unexpected stress, as in "re-bel´" to emphasize the second syllable in a word like "rebel" for rhythmic purposes. This stylistic use aids poets and readers in aligning spoken delivery with the intended meter, especially in sprung rhythm or accentual-syllabic forms. Gerard Manley Hopkins, a 19th-century poet, systematically applied the acute accent in his manuscripts to mark "metrical strong" positions in doubtful cases, as noted in his correspondence and annotations; for example, in "Spring and Fall," he accented "Márgarét" to clarify prosodic peaks.[49][8] In French rhetorical contexts, such as theater scripts, the acute accent on é serves to guide performers toward a closed /e/ vowel sound that often carries emphatic weight in dramatic delivery, distinguishing it from the schwa-like /ə/ or open /ɛ/. This pronunciation cue supports prosodic emphasis on key syllables during spoken verse or dialogue, enhancing emotional intonation without altering lexical meaning. For example, in scripted lines from classical plays, words like "éclat" receive heightened articulation to convey intensity or climax in performance.[50][51] The acute accent appears in song lyrics and choral chants to direct singers on prosodic peaks, marking syllables for heightened pitch or intensity to align text with melody. This optional notation ensures rhythmic fidelity, particularly in multilingual or borrowed phrases where stress might otherwise vary; an example is "ca-fé´" in English adaptations of French songs to stress the final syllable for melodic flow.[52][8] During the 19th century, phonetic reformers like Henry Sweet advocated for diacritics, including the acute accent, in proposed English orthographic systems to clarify stress and vowel quality for improved readability and pronunciation. Sweet's Handbook of Phonetics (1877) outlined such marks to bridge irregular spelling with spoken prosody, influencing later discussions on accentual clarity in non-standard writing.[53]

Letter Extension and New Characters

The acute accent serves as a diacritic that modifies base letters in the Latin script to create extended characters representing unique phonemes, particularly for vowels. In languages such as Hungarian, it distinguishes long vowels from their short counterparts; for instance, á denotes the long /aː/ sound, contrasting with the short /ɔ/ of a, thereby altering word meaning and fulfilling a phonemic role in the vowel system.[54] Similarly, in Czech orthography, the acute accent on vowels like é and ó indicates length, producing distinct mid-close vowels /eː/ and /oː/ that differentiate from the short /ɛ/ and /ɔ/, essential for lexical contrast.[55] These extensions, including í for /iː/ and ú for /uː/, integrate seamlessly into the alphabet to encode specific phonetic qualities without introducing new base letters. In Polish, the acute accent, known as kreska, extends consonants to mark palatalization, forming characters like ć, which represents the voiceless alveolo-palatal affricate /tɕ/, distinct from the postalveolar /tʂ/ of cz; this phonemic distinction is crucial for sounds not present in the base Latin inventory.[12] For the letter ý, used in Czech and Icelandic, the acute accent on y produces /iː/, a long close front vowel separate from short /ɪ/ or /ʏ/, highlighting the diacritic's role in vowel height and length specification. In Cyrillic-based scripts, the acute accent creates extended letters for palatal sounds, such as Ѓ (uppercase) and ѓ (lowercase) in Macedonian, where it modifies г to represent the voiced palatal plosive /ɟ/, known as gj, contrasting with the velar /g/ of г.[56] This usage parallels brief palatal examples in other Slavic orthographies, emphasizing phonemic differentiation. In indigenous languages like Navajo, the acute accent extends vowels to denote high tone, a phonemic feature; á marks high tone on /a/, while in nasalized contexts, ą́ combines with the ogonek to represent the high-toned nasalized vowel /ą́/, distinguishing tone and nasality for semantic precision.[57] In digital text processing, these extended characters appear either as precomposed forms—single units embedding the base letter and accent—or as sequences of a base letter followed by a combining acute diacritic, with precomposed variants often favored for rendering consistency and search efficiency.[58]

Miscellaneous Applications

In Tagalog dictionaries, the acute accent is employed to mark lexical stress explicitly, ensuring unambiguous pronunciation since stress typically falls on the penultimate syllable unless otherwise indicated. This convention helps distinguish minimal pairs and aids learners in accurate word stress placement, drawing from Spanish orthographic influences in Philippine languages.[59] In mathematical notation, the term "acute angle" refers to any angle measuring less than 90°, symbolized by ∠ with the qualifier "acute," though this usage is distinct from the diacritic form of the acute accent employed in linguistics. The designation originates from the Latin acutus, meaning sharp, evoking the pointed shape of angles under 90°, but no diacritic mark is applied directly to the angle symbol in standard geometric representations.[60][61] The acute accent appears in stylized brand names and trademarks to convey specific pronunciations or aesthetic flair, as seen in Pokémon, where the é ensures the "e" is pronounced as /eɪ/ rather than silent, reflecting the Japanese katakana rendering of the English phrase "Pocket Monsters." This orthographic choice enhances global brand recognition while mimicking French loanword conventions.[62][63] Historically, the acute accent influenced early music notation for indicating phrasing and emphasis, particularly in Carolingian-era scripts where an upward stroke akin to the acute marked rising inflections or musical gestures in Palaeofrankish neumes. In Gregorian chant, the virga—a descendant of the acute accent—signaled subtle rises in pitch for phrasing, though such uses were largely superseded by modern articulation symbols like staccato and accents (>).[64][65]

Uses in Specific Languages

In English

The acute accent has a limited and inconsistent presence in English orthography, primarily appearing in loanwords borrowed from languages like French where it was originally used to indicate pronunciation. Common examples include café (pronounced /kæˈfeɪ/), résumé (/ˈrɛzʊmeɪ/ or /reɪzʊˈmeɪ/), and naïve (/naɪˈiːv/, though often written with a diaeresis as naïve to clarify vowel separation).[66][67] These diacritics are retained to preserve the foreign etymology and aid pronunciation, particularly in formal writing, as recommended by style guides for non-anglicized terms.[68] In specialized contexts such as poetry and dictionaries, the acute accent occasionally marks stress on an unusual syllable or indicates that a typically silent vowel should be pronounced. For instance, in poetic scansion, it might appear in words like élite to emphasize /eɪˈliːt/, guiding rhythmic reading where standard stress patterns do not apply.[69] Similarly, some dictionaries employ the acute as a stress indicator, such as in ópera to denote primary emphasis on the first syllable.[70] Debates persist regarding the anglicization of loanwords, with some advocating for dropping accents in fully assimilated terms like resume (from résumé) or role (from rôle) to simplify English spelling conventions, while others argue for preservation, especially in proper nouns or to avoid ambiguity.[71][68] The Chicago Manual of Style, for example, permits flexibility but encourages retaining diacritics in initial or less familiar borrowings to maintain phonetic accuracy.[72] In English as a Second Language (ESL) materials, the acute accent serves a pedagogical role by providing visual cues for pronunciation and stress placement, helping learners navigate irregular patterns in loanwords or stressed syllables that differ from native-language expectations.[73] This usage is not systematic but supports targeted instruction, such as marking café to reinforce the final /eɪ/ sound.[8]

In Romance Languages

In French orthography, the acute accent is used exclusively on the letter e to denote the closed mid-front vowel /e/, distinguishing it from the open /ɛ/ marked by the grave accent or unaccented e. This usage primarily occurs in open syllables or word-final positions to indicate a specific pronunciation quality, as seen in words like café (/kafe/) or été (/ete/). The accent aigu thus serves both prosodic and phonemic functions, ensuring clarity in vowel quality without altering stress patterns, which are largely predictable in French.[74] In Spanish, the acute accent (tilde) indicates stress on the final syllable of oxytone words that end in a vowel, n, or s (unless the s is preceded by another consonant), following the standardized rules of the Real Academia Española. For example, mamá places the accent on the final a to mark it as stressed, contrasting with paroxytone words like casa that follow default penultimate stress without marking. This orthographic convention helps disambiguate pronunciation in polysyllabic words and is obligatory for adherence to rhythmic patterns in the language. Portuguese employs the acute accent (acento agudo) similarly to Spanish for marking stress on open vowels in the tonic syllable, particularly in oxytone and proparoxytone words, while also distinguishing vowel height—open /a/, /ɛ/, /ɔ/ versus closed counterparts via the circumflex. It appears on vowels like a, e, o to signal an open quality under stress, as in lágrima or óptimo. In cases involving nasal vowels, the acute accent can combine with the tilde (~) to denote both stress and nasalization, such as in órgão, where the tilde indicates nasality and the acute the open stressed o; however, standalone nasals like não use only the tilde. These rules, codified in the Acordo Ortográfico, ensure precise representation of the language's variable vowel system across European and Brazilian variants.[75][76] In Italian, the acute accent (accento acuto) is used sparingly in standard orthography, primarily on word-final e to indicate the close-mid /e/ sound, as in perché ('why'), contrasting with the grave accent on open /ɛ/ in words like città. Its application is rare outside this context, appearing mostly in loanwords, proper names, or to resolve ambiguities in pronunciation, rather than for general stress marking, which is not graphically indicated in Italian. Historically, in Tuscan dialects—the basis for standard Italian—the acute accent saw broader use in early printed texts from the 16th century, following Greek-inspired conventions to denote rising intonation or vowel closure, though this has largely faded in modern usage.

In Slavic and Other European Languages

In Polish orthography, the acute accent, referred to as kreska, is applied to certain consonants to denote palatalization, producing the letters ć [tɕ], ś [ɕ], and ź [ʑ] from c, s, and z, respectively; it also marks the palatal nasal ń [ɲ] from n and lengthens o to ó [u].[12] These diacritics distinguish soft (palatalized) consonants from their hard counterparts, as in ci (with i indicating palatalization) versus ć for the same sound in other positions.[77] In Czech, the acute accent (čárka) primarily indicates vowel length, which often coincides with stress placement on the initial syllable unless altered by morphological rules; for example, in výška ("height"), the accent on ý marks the long vowel /iː/ while contributing to prosodic emphasis.[78] Long vowels like á, é, í, ó, and ú are thus distinguished from their short counterparts, supporting the language's phonemic length distinctions in both stressed and unstressed positions.[78] In Irish, the acute accent, known as the síneadh fada or "long mark," is placed over vowels (á, é, í, ó, ú) to indicate that they are long, altering pronunciation and often word meaning, such as sean ("old") versus Seán ("John"). This diacritic is essential in Irish orthography for representing the language's vowel length distinctions in its Latin-based script.[79] Hungarian employs the double acute accent—a variant of the acute—for the long front rounded vowels ő [øː] and ű [yː], distinguishing them from the short ö [ø] and ü [y]; this diacritic, unique to Hungarian, ensures vowel harmony and length are clearly represented in the orthography.[80] Single acute accents mark other long vowels (á, é, í, ó, ú), but the double form specifically handles the rounded front series to maintain phonological contrasts.[81] In modern Greek, following the adoption of monotonic orthography in 1982, the acute accent (tonos) obligatorily marks stress on the vowel of every polysyllabic word, replacing the polytonic system's multiple diacritics and ensuring predictable prosody without indicating pitch or length.[82] This simplified system applies uniformly to words like άνθρωπος ("human"), where the accent on the initial α signals the stressed syllable.[83]

In Asian Languages

In Vietnamese, the acute accent functions as the diacritic for the sắc tone, representing a high rising pitch contour typically transcribed as /˧˥/. This tone starts at mid-level and rises sharply, distinguishing words like "má" pronounced /ma˧˥/, meaning "mother" or "cheek."[84] The sắc mark is placed above the vowel in the syllable, and its use is essential in the Latin-based Quốc ngữ script to convey meaning in this tonal language, where tone changes can alter semantics entirely.[85] In the Hanyu Pinyin romanization system for Standard Mandarin Chinese, the acute accent denotes the second tone, a rising pitch from mid to high level, also transcribed as /˧˥/. For instance, "nǐ" is pronounced /ni˧˥/ and means "you." This diacritic is applied over the main vowel of the syllable, aiding non-native learners and digital text processing in representing the language's lexical tones.[86] The acute accent appears in some romanization systems for Thai and Khmer, particularly to indicate vowel length or stress in loanwords adapted from European languages. In historical American missionary romanizations of Thai, it marked long vowels where the script distinguishes length, as in transcriptions of Pali or Sanskrit-derived terms. For Khmer, the Library of Congress romanization employs the acute accent (á) for specific dependent vowels with final -s or glottal stops, often in loanwords from French or Indic sources, ensuring accurate phonetic representation in Latin script.[87]

Technical Aspects

Typographic Form and Variations

The acute accent (´) is a diacritic mark characterized by a straight line slanting rightward from top to bottom, typically at an angle of approximately 45 degrees, and positioned above a letter or between letters in some ligatures.[88] Its vertical height is generally aligned to match the ascender line of the font, ensuring it sits proportionally above lowercase letters like e or a without exceeding the x-height plus ascender space.[88] In standard typographic design, such as in sans-serif or serif fonts, the acute is rendered as a thin, even stroke to maintain optical balance, with its base often centered over the letter's midline for lowercase forms.[89] Variations in the acute accent's form arise between printed and handwritten applications, as well as in specific linguistic contexts. In printed typography, the mark maintains a consistent 45-degree slant and uniform thickness, governed by font metrics to avoid distortion across sizes.[90] Handwritten instances, however, often appear steeper—approaching 60 degrees or more—due to the natural flow of the pen stroke, resulting in a more vertical or elongated appearance compared to the restrained geometry of mechanical reproduction.[91] A notable variation is the double acute accent (˝), consisting of two acute marks side by side, primarily used in Hungarian to denote long front rounded vowels on ő and ű; this glyph is wider than a single acute and horizontally aligned to fit the letter's curvature.[92] The acute accent is frequently confused with the apostrophe (') or a raised comma, particularly in digital input where straight quotes substitute for both, leading to typographic errors.[93] In professional fonts like Times New Roman, typographic rules differentiate them clearly: the acute is a distinct slanted diacritic glyph (U+00B4), straight and uncurved, while the apostrophe uses a curved form (U+2019) resembling a reversed comma for contractions or possessives, ensuring semantic clarity in composition.[94] Misuse of the acute as an apostrophe, such as in it´ s, violates these conventions and disrupts readability.[94] Historically, the acute accent evolved from the ancient Roman apex, a diacritic shaped like a small acute mark placed over vowels in Latin inscriptions to indicate length, as seen in classical epigraphy from the 1st century BCE.[95] This handwritten form, often crafted from a thin metal rod or ink stroke, transitioned through medieval manuscripts where scribes adapted it for stress or tone in vernacular languages.[96] By the 15th century, with the invention of movable type by Gutenberg, the acute was standardized into metal typefaces, evolving into the precise, reproducible glyph used in modern printing presses and digital fonts.[97]

Unicode Encoding

The acute accent is represented in Unicode both as a combining diacritic and in precomposed forms with various base letters. The combining acute accent, which can be applied to any preceding base character to form accented letters, is encoded at U+0301 (◌́ COMBINING ACUTE ACCENT). This allows flexible composition, such as e + U+0301 rendering as é. Precomposed characters integrate the acute accent directly with Latin letters, primarily in the Latin-1 Supplement block (U+00C0 to U+00FF). Examples include U+00E1 (á LATIN SMALL LETTER A WITH ACUTE), U+00E9 (é LATIN SMALL LETTER E WITH ACUTE), U+00ED (í LATIN SMALL LETTER I WITH ACUTE), U+00F3 (ó LATIN SMALL LETTER O WITH ACUTE), and U+00FA (ú LATIN SMALL LETTER U WITH ACUTE), along with their uppercase counterparts like U+00C1 (Á LATIN CAPITAL LETTER A WITH ACUTE). Additional precomposed forms appear in other blocks, such as Latin Extended-A for characters like ǵ (U+01F5 LATIN SMALL LETTER G WITH ACUTE). These encodings have remained stable through Unicode 17.0, released in 2025, with no significant alterations to acute accent representations as of November 2025.[98] Unicode defines canonical decompositions for precomposed acute-accented characters, breaking them into the base letter followed by U+0301 for normalization purposes. For instance, É (U+00C9 LATIN CAPITAL LETTER E WITH ACUTE) decomposes to E (U+0045) + ◌́ (U+0301).[99] Compatibility decompositions follow similar mappings but may include additional formatting adjustments in certain contexts.[99] For legacy systems, the acute accent and precomposed forms are supported in ISO/IEC 8859-1 (Latin-1), where characters like á occupy byte position 0xE1 and é occupy 0xE9, ensuring compatibility with early digital text processing.

Keyboard Input and Typing Methods

On Windows systems using the United States-International keyboard layout, the acute accent is entered via dead keys, where the apostrophe key (') acts as a modifier; pressing ' followed by a vowel produces the accented form, such as ' then a for á.[100] Alternatively, numeric Alt codes allow direct input of specific characters on keyboards with a numeric keypad; for instance, holding Alt and typing 0225 on the keypad inserts á (lowercase a with acute).[101] On macOS, the acute accent is accessed using the Option key as a dead key; pressing Option+E places the acute mark, followed by the desired vowel, such as Option+E then a for á.[102] For mobile devices, both iOS and Android keyboards support long-pressing a vowel key to display a popup menu of accented variants, including acute forms like á or é; on iOS, this works directly with the onscreen keyboard, while on Android's Gboard, touching and holding a key reveals the options.[103][104] Language-specific keyboards simplify input for acute accents in relevant scripts. The French AZERTY layout includes a dedicated key for é on the number 2 position, with Shift+2 producing É (uppercase), and dead keys for other vowels like à or è on keys 7 and 0, respectively.[105] In Linux environments, such as Ubuntu, the Compose key enables sequence-based entry; after pressing the Compose key (configurable, often Right Alt), followed by ' (apostrophe) and then a vowel, yields the acute accent, for example, Compose + ' + e for é.[106] These methods rely on underlying Unicode codepoints for rendering but focus on user-friendly production.[107]

References

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