noun
- A manner of speaking that is natural to native speakers of a language.
- synonyms: parlance
- The usage or vocabulary that is characteristic of a specific group of people.
- usage: "the immigrants spoke an odd dialect of English"; "he has a strong German accent"; "it has been said that a language is a dialect with an army and navy"
- The style of a particular artist or school or movement.
- usage: "an imaginative orchestral idiom"
- synonyms: artistic style
- An expression whose meanings cannot be inferred from the meanings of the words that make it up.
- synonyms: idiomatic expression, phrasal idiom, set phrase, phrase