A figure of speech, sometimes terme a rhetoric, or locution, is a word or phrase that departs from straightforward, literal language. Figures of speech are often used and crafted for emphasis, freshness of expression, or clarity. However, clarity may also suffer from their use. Note that all theories of meaning necessarily have a concept of "literal language" (see literal and figurative language). Under theories that do not, figure of speech is not an entirely coherent concept.