Synonyms

multiply

¹ American

[muhl-tuh-plahy] / ˈmʌl təˌplaɪ /

verb (used with object)

multiplied, multiplying

to make many or manifold; increase the number, quantity, etc., of.
Arithmetic. to find the product of by multiplication.
to breed (animals).
to propagate (plants).
to increase by procreation.

verb (used without object)

multiplied, multiplying

to grow in number, quantity, etc.; increase.

Synonyms:

mushroom, grow, proliferate
Arithmetic. to perform the process of multiplication.
to increase in number by procreation or natural generation.

multiply ² American

[muhl-tuh-plee] / ˈmʌl tə pli /

adverb

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

multiply British

/ ˈmʌltɪˌplaɪ /

verb

to increase or cause to increase in number, quantity, or degree
(tr) to combine (two numbers or quantities) by multiplication
(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

/ mŭl′tə-plī′ /

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 multiply²

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.

What’s more, Nasdaq will multiply that percentage float by three-times, in calculating the weight of a low-float addition to the index.

From Barron's • Apr. 1, 2026

Trump's options may be about to multiply with the arrival of around 5,000 US Marines in the region, along with paratroopers from the US 82nd Airborne Division - but there are risks here, too.

From BBC • Mar. 25, 2026

It was an intense and disorienting time if you were simply a fan of the music; multiply that by approximately a gigaton if you were anywhere adjacent.

From Salon • Mar. 24, 2026

Traders are snapping up defense stocks and buying more shares of leveraged ETFs that multiply the impact of market moves, said Webull CEO Anthony Denier.

From The Wall Street Journal • Mar. 14, 2026

Because it was a really easy sum because you just multiply 864 X 1,000, which is 864,000.

From "The Curious Incident of the Dog in the Night-Time" by Mark Haddon

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023