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multiply - definition and synonyms


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verb multiply pronunciation in American English /ˈmʌltɪˌplaɪ/
Word Forms
present tense
present participlemultiplying
past tensemultiplied
past participlemultiplied
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  1. 1
    [intransitive] to increase by a large amount

    Within the last 10 years, both sales and profits have multiplied.

    1. a.
      [transitive] to increase something by a large amount

      He has multiplied his fortune many times.

    2. b.
      [intransitive] to increase in number by producing new animals, plants, bacteria, etc.

      Even a slight increase in temperature will cause bacteria to multiply very rapidly.

  2. 2
    [intransitive/transitive] maths to add a number to itself a particular number of times
    multiply something by something:

    If you multiply 3 by 3, you get 9.

    multiply something together:

    Multiply the two figures together and that will give you the area.


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