Word forms: idioms
1. countable noun [usu sing] A particular idiom is a particular style of something such as music, dance, or architecture. [formal] ⇒ McCartney was also keen to write in a classical idiom, rather than a pop one. ⇒ It was an old building in the local idiom. 2. countable noun
An idiom is a group of words which have a different meaning when used together from the one they would have if you took the meaning of each word separately. [technical] ⇒ Proverbs and idioms may become worn with over-use. ⇒ She is, in fact, a perfect illustration of the French idiom 'to be comfortable in one's own skin.'
3. uncountable noun Idiom of a particular kind is the language that people use at a particular time or in a particular place. [formal] ⇒ And nothing was so irritating as the confident way he used archaic idiom. ⇒ ...her command of the Chinese idiom.
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