idiomatic expression

Từ điển WordNet v3.1 - WordNet Dictionary

noun

an expression whose meanings cannot be inferred from the meanings of the words that make it up
• Syn:
idiom, phrasal idiom, set phrase, phrase
• Derivationally related forms:
phrasal (for: phrase), phrase (for: phrase), idiomatic (for: idiom)
• Members of this Usage Domain:
out of whack, in the lurch, like clockwork
• Hypernyms:
saying, expression, locution
• Hyponyms:
ruralism, rusticism