idiom
n
1 [C] phrase or sentence whose meaning is not clear from the meaning of its individual words and which must be learnt as a whole unit 習語; 成語; 慣用語, 如 give way, a change of heart, be hard put to it
The English language has many idioms. 英語有很多慣用語.
2 [U]
(a) language or dialect of a people or country某民族或某國家之語言或方言
the French idiom 法語.
(b) use of language that is typical of or natural to speakers of a particular language (操某語言者典型的或自然的)語言用法.
(c) use of language peculiar to a period or an individual (某時期或某人特有的)語言用法
Shakespeare's idiom 莎士比亞的語言風格.