Idiom [C] a group of words in a fixed order that have a particular meaning that is different from the meanings of each word understood on its own To "have bitten off more than you can chew" is a(n) ………..that means you have tried to do something which is too difficult for you. [C or U] formal the style of expression in writing, speech or music that is typical of a particular period, person or group Both operas are very much in the modern ……………... Collocation [C] a word or phrase which is often used with another word or phrase, in a way that sounds correct to people who have spoken the language all their lives, but might not be expected from the meaning In the phrase 'a hard frost', 'hard' is a(n) ………………. of 'frost' and 'strong' would not sound natural. [C] the combination of words formed when two or more words are often used together in a way that sounds correct The phrase 'a hard frost' is a(n) …………….. [U] the regular use of some words and phrases with others, especially in a way which is difficult to guess (no example) Proverb a short sentence, etc., usually known by many people, stating something commonly experienced or giving advice The appetite, says the ……………., grows with eating. There is an old Arab …………….. that everything you write or speak should pass through three gates: Is this kind? Is this necessary? Is this true?