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English definition of “half”

half

noun, pronoun, predeterminer, adjective, adverb     /hɑːf/ US  /hæf/
A2 either of the two equal or nearly equal parts that together make up a whole : "What's half of 96?" "48." Roughly half (of) the class are Spanish and the others are a mixture of nationalities . Cut the apple in half/into halves (= into two equal parts ). My little brother is half as tall as me/half my height . half a dozen (= six) eggs Half of me would just like to give it all up and travel around the world (= partly I would like to, but partly I would not). She was born in the latter half of the 18th century . The recipe tells you to use a pound and a half of butter .Fractions B2 informal a lot: She invited a lot of people to the party but half of them didn't turn up. I don't even know where she is half (of) the time .Large in number or quantity half past A1 Half past a particular hour is 30 minutes later than that hour : I'll meet you at half past nine (= 09.30 or 21.30).UK informal I'll meet you at half seven (= half past seven).Days and times of day B1 only partly : He answered the door half naked . I was half expecting to see her at the party . I'm half inclined to take the job just because it's in London. He was being funny but I think he was half serious . The bottle's half empty .Incomplete go halves informal to divide the cost of something with someone: Shall we go halves on a bottle of champagne ? I'll go halves with you on a bottle of champagne .Sharing half and half equal amounts of two different things: "Do you use milk or cream in the recipe ?" "Half and half."Fractions half as much again (US also half again as much) 50 percent more of the existing number or amount Addition, subtraction, multiplication and divisionCalculations and calculating Grammar:Half as a nounGrammar:Half as an adjectiveGrammar:HalfA half is one of two equal parts of something:Grammar:Half in noun phrasesWe can use half and half of before nouns with the definite article (the), possessives (my, your) and demonstratives (this, that):Grammar:Half as an adverbWe can use half as an adverb which means ‘not completely’, ‘partly’:
(Definition of half nounpronounpredetermineradjectiveadverb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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