multiply Meaning in the Cambridge English Dictionary
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Meaning of “multiply” in the English Dictionary

"multiply" in British English

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multiplyverb [I or T]

uk   /ˈmʌl.tɪ.plaɪ/  us   /-t̬ɪ-/
to ​increase very much in ​number, or (in ​mathematics) to ​add a ​number to itself a ​particularnumber of ​times: In ​warmweather these ​germs multiply ​rapidly. If you multiply seven by 15 you get 105.
noun [U] uk   /ˌmʌl.tɪ.plɪˈkeɪ.ʃən/  us   /-t̬ɪ-/
(Definition of multiply from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"multiply" in American English

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multiplyverb [I/T]

 us   /ˈmʌl·təˌplɑɪ/

multiply verb [I/T] (calculate)

mathematics to ​add a ​number to itself a ​particularnumber of ​times: [T] If you multiply 7 by 15 you get 105.

multiply verb [I/T] (INCREASE)

to ​increasegreatly in ​number: [I] The ​viruses multiply within the ​body.
(Definition of multiply from the Cambridge Academic Content Dictionary © Cambridge University Press)

"multiply" in Business English

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multiplyverb [I or T]

uk   us   /ˈmʌltɪplaɪ/
to ​increase a lot in ​number or to make something do this: Lawsuits against ​bigdrugscompanies have multiplied in recent ​years. According to Peruvian ​authorities, ​chemicalfertilizers are multiplying coca leaf ​production by up to 1,000% ​perhectare.
if you multiply a ​number, you ​add another ​number to it a particular ​number of ​times: multiply sth by 6/50/120, etc. Multiply your ​income by 3 to get a ​roughidea of what ​size of ​mortgage you can ​apply multiplied by 6/50/120, etc. The ​totalfigure must be multiplied by 75% to ​produce the ​amountpaid out to ​investors. They learn how to ​add, ​subtract, ​divide, and multiply.
(Definition of multiply from the Cambridge Business English Dictionary © Cambridge University Press)
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