A variety of a language that has diverged greatly from the standard form, and is only considered suitable for very informal contexts by speakers.
A language or language variety; specifically, a restricted dialect used in a given historical period, context etc.
An artistic style (for example, in art, architecture, or music); an instance of such a style.
A manner of speaking, a mode of expression peculiar to a language, language family, or group of people.
An established phrasal expression whose meaning may not be deducible from the literal meanings of its component words.
A programming construct or phraseology that is characteristic of the language.