Dictionary.com
Thesaurus.com
Synonyms

multiply

1 American  
[muhl-tuh-plahy] / ˈmʌl təˌplaɪ /

verb (used with object)

multiplied, multiplying
  1. to make many or manifold; increase the number, quantity, etc., of.

  2. Arithmetic.  to find the product of by multiplication.

  3. to breed (animals).

  4. to propagate (plants).

  5. to increase by procreation.


verb (used without object)

multiplied, multiplying
  1. to grow in number, quantity, etc.; increase.

    Synonyms:
    mushroom , grow , proliferate
  2. Arithmetic.  to perform the process of multiplication.

  3. to increase in number by procreation or natural generation.

multiply 2 American  
[muhl-tuh-plee] / ˈmʌl tə pli /

adverb

  1. in several or many ways; in a multiple manner; manifoldly.


multiply British  
/ ˈmʌltɪˌplaɪ /

verb

  1. to increase or cause to increase in number, quantity, or degree

  2. (tr) to combine (two numbers or quantities) by multiplication

  3. (intr) to increase in number by reproduction

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

multiply Scientific  
/ mŭltə-plī′ /
  1. To perform multiplication on a pair of quantities.


Other Word Forms

  • multipliable adjective
  • self-multiplied adjective
  • self-multiplying adjective
  • unmultiplied adjective
  • unmultiplying adjective

Etymology

Origin of multiply1

First recorded in 1225–75; Middle English multiplien, from Old French multiplier, from Latin multiplicāre; multi-, ply 2

Origin of multiply1

First recorded in 1880–85; multiple + -ly

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Bird flu viruses pose a significant danger to humans because they can continue multiplying at temperatures warmer than a normal fever.

From Science Daily

It is a stunning series whose rewards only multiply the longer you spend with it.

From The Wall Street Journal

Questions multiplied, but one seemed more elusive than the rest: How did a baby-faced novice from small-town California dupe some of academia’s brightest minds?

From The Wall Street Journal

These products offer traders the ability to multiply earnings on daily price swings, but they also risk taking heavy losses if the underlying asset swings too far in the wrong direction.

From MarketWatch

Cancer cells fall into this category, yet over time they have developed ways to block ferroptosis so they can continue multiplying even under damaging conditions.

From Science Daily