Meaning of “halve” in the English Dictionary

"halve" in English

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uk /hɑːv/ us /hæv/

[ T ] to reduce something by half or divide something into two equal pieces:

In the past eight years, the elephant population in Africa has been halved.
The potatoes will cook more quickly if you halve them before you put them in the oven.

[ I ] If something halves, it is reduced by half:

Their profits have halved in the last six months.

(Definition of “halve” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"halve" in American English

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halveverb [ T ]

us /hæv/

to divide something into two equal parts, or to reduce something to half of its original size, number, or degree:

The doctor decided to halve the dose of the drug.

(Definition of “halve” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"halve" in Business English

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halveverb [ I or T ]

uk /hɑːv/ us

to reduce a number or amount by 50 per cent, or to be reduced by 50 per cent:

Canada, Japan, and the EU are committed to halving global emissions by 2050.
Pre-tax profits nearly halved last year to £14m.
halve the amount/number/cost of sth The industry's rush of consolidation in the last decade nearly halved the number of banks in the U.S. to around 7,500.

(Definition of “halve” from the Cambridge Business English Dictionary © Cambridge University Press)