Metaphor

A metaphor is a figure of speech that, for rhetorical effect, refers to one thing by mentioning another. It may provide clarity or identify hidden similarities between two different ideas. Metaphors are usually meant to create a likeness or an analogy.

Analysts group metaphors with other types of figurative language, such as hyperbole, metonymy, and simile. According to Grammarly, "Figurative language examples include similes, metaphors, personification, hyperbole, allusions, and idioms." One of the most commonly cited examples of a metaphor in English literature comes from the "All the world's a stage" monologue from As You Like It:

All the world's a stage,
And all the men and women merely players;
They have their exits and their entrances
And one man in his time plays many parts,
His Acts being seven ages. At first, the infant...
—William Shakespeare, As You Like It, 2/7

This quotation expresses a metaphor because the world is not literally a stage, and most humans are not literally actors and actresses playing roles. By asserting that the world is a stage, Shakespeare uses points of comparison between the world and a stage to convey an understanding about the mechanics of the world and the behavior of the people within it.

In the ancient Hebrew Book of Psalms (around 1000 B.C.), one finds vivid and poetic examples of metaphor such as, "The Lord is my rock, my fortress and my deliverer; my God is my rock, in whom I take refuge, my shield and the horn of my salvation, my stronghold" and "The Lord is my shepherd, I shall not want". Some recent linguistic theories view all language in essence as metaphorical. The etymology of a word may uncover a metaphorical usage which has since become obscured with persistent use - such as for example the English word "window", etymologically equivalent to "wind eye".

The word metaphor itself is a metaphor, coming from a Greek term meaning 'transference (of ownership)'. The user of a metaphor alters the reference of the word, "carrying" it from one semantic "realm" to another. The new meaning of the word might derive from an analogy between the two semantic realms, but also from other reasons such as the distortion of the semantic realm - for example in sarcasm.

The English word metaphor derives from the 16th-century Old French word métaphore, which comes from the Latin metaphora, 'carrying over', and in turn from the Greek μεταφορά (metaphorá), 'transference (of ownership)', from μεταφέρω (metapherō), 'to carry over, to transfer' and that from μετά (meta), 'behind, along with, across' + φέρω (pherō), 'to bear, to carry'.

The Philosophy of Rhetoric (1936) by rhetorician I. A. Richards describes a metaphor as having two parts: the tenor and the vehicle. The tenor is the subject to which attributes are ascribed. The vehicle is the object whose attributes are borrowed. In the previous example, "the world" is compared to a stage, describing it with the attributes of "the stage"; "the world" is the tenor, and "a stage" is the vehicle; "men and women" is the secondary tenor, and "players" is the secondary vehicle.^{[citation needed]}