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English definition of “multiply”

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multiply

verb [I/T]  /ˈmʌl·təˌplɑɪ/ us  

multiply verb [I/T] (calculate)

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

multiply verb [I/T] (INCREASE)

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