Dialect

A dialect is a variety of language spoken by a particular group of people. This may include dominant and standardized varieties as well as vernacular, unwritten, or non-standardized varieties, such as those used in developing countries or isolated areas.

The non-standard dialects of a language with a writing system will operate at different degrees of distance from the standardized written form.

A standard dialect, also known as a "standardized language", is supported by institutions. Such institutional support may include any or all of the following: government recognition or designation; formal presentation in schooling as the "correct" form of a language; informal monitoring of everyday usage; published grammars, dictionaries, and textbooks that set forth a normative spoken and written form; and an extensive formal literature (be it prose, poetry, non-fiction, etc.) that uses it. An example of a standardized language is the French language which is supported by the Académie Française institution. A nonstandard dialect also has a complete grammar and vocabulary, but is usually not the beneficiary of institutional support.

The distinction between the "standard" dialect and the "nonstandard" (vernacular) dialects of the same language is often arbitrary and based on social, political, cultural, or historical considerations or prevalence and prominence. In a similar way, the definitions of the terms "language" and "dialect" may overlap and are often subject to debate, with the differentiation between the two classifications often grounded in arbitrary or sociopolitical motives, and the term "dialect" is sometimes restricted to mean "non-standard variety", particularly in non-specialist settings and non-English linguistic traditions.

The term dialect is applied mostly to speech patterns that are unique to an area, which is sometimes called a regiolect, but a dialect may also be defined in other ways such as social class, a sociolect, or ethnicity, a ethnolect.

According to this definition, any variety of a given language can be classified as "a dialect", including any standardized varieties. In this case, the distinction between the "standard language" (i.e. the "standard" dialect of a particular language) and the "nonstandard" (vernacular) dialects of the same language is often arbitrary and based on social, political, cultural, or historical considerations or prevalence and prominence. In a similar way, the definitions of the terms "language" and "dialect" may overlap and are often subject to debate, with the differentiation between the two classifications often grounded in arbitrary or sociopolitical motives. The term "dialect" is however sometimes restricted to mean "non-standard variety", particularly in non-specialist settings and non-English linguistic traditions. Conversely, some dialectologists have reserved the term "dialect" for forms that they believed (sometimes wrongly) to be purer forms of the older languages, as in how early dialectologists of English did not consider the Brummie of Birmingham or the Scouse of Liverpool to be real dialects, as they had arisen fairly recently in time and partly as a result of influences from Irish migrants.

There is no universally accepted criterion for distinguishing two different languages from two dialects (i.e. varieties) of the same language. A number of rough measures exist, sometimes leading to contradictory results. The distinction between dialect and language is therefore subjective^[how?] and depends upon the user's preferred frame of reference. For example, there has been discussion about whether or not the Limón Creole English should be considered "a kind" of English or a different language. This creole is spoken in the Caribbean coast of Costa Rica (Central America) by descendants of Jamaican people. The position that Costa Rican linguists support depends upon which university they represent. Another example is Scanian, which even, for a time, had its own ISO code.

An important criterion for categorizing varieties of language is linguistic distance. For a variety to be considered a dialect, the linguistic distance between the two varieties must be low. Linguistic distance between spoken or written forms of language increases as the differences between the forms are characterized. For example, two languages with completely different syntactical structures would have a high linguistic distance, while a language with very few differences from another may be considered a dialect or a sibling of that language. Linguistic distance may be used to determine language families and language siblings. For example, languages with little linguistic distance, like Dutch and German, are considered siblings. Dutch and German are siblings in the West-Germanic language group. Some language siblings are closer to each other in terms of linguistic distance than to other linguistic siblings. French and Spanish, siblings in the Romance Branch of the Indo-European group, are closer to each other than they are to any of the languages of the West-Germanic group. When languages are close in terms of linguistic distance, they resemble one another, hence why dialects are not considered linguistically distant to their parent language.