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English definition of “half”

half

pronoun, noun [C/U]    /hæf/ (plural halves  /hævz/)
either of the two equal or nearly equal parts that together make up a whole: [U] Half of 12 is 6. [U] Half (of) the students are Spanish. [U] Cut the apple in half (= into two equal parts). [C] The recipe calls for a pound and a half of potatoes. In sports, a half is one of two equal periods of play, often with a short pause for rest between them.
(Definition of half pronoun, noun from the Cambridge Academic Content Dictionary © Cambridge University Press)
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