[ muhl-tuh-plahy ]
/ ˈmʌl təˌplaɪ /

verb (used with object), mul·ti·plied, mul·ti·ply·ing.

verb (used without object), mul·ti·plied, mul·ti·ply·ing.

Origin of multiply

1225–75; Middle English multiplien < Old French multiplier < Latin multiplicāre. See multi-, ply2

Related forms

self-mul·ti·plied, adjectiveself-mul·ti·ply·ing, adjectiveun·mul·ti·plied, adjectiveun·mul·ti·ply·ing, adjective

Definition for multiply (2 of 3)


[ muhl-tuh-plee ]
/ ˈmʌl tə pli /


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

Origin of multiply

First recorded in 1880–85; multiple + -ly

Definition for multiply (3 of 3)


[ muhl-tee-plahy, muhl-tahy- ]
/ ˌmʌl tiˈplaɪ, ˌmʌl taɪ- /


having or composed of several plies: a multi-ply fabric.

Origin of multi-ply

First recorded in 1935–40 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for multiply

British Dictionary definitions for multiply


/ (ˈmʌltɪˌplaɪ) /

verb -plies, -plying or -plied

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

Derived Forms

multipliable or multiplicable, adjective

Word Origin for multiply

C13: from Old French multiplier, from Latin multiplicāre to multiply, from multus much, many + plicāre to fold
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

Medicine definitions for multiply


[ mŭltə-plī′ ]


To increase the amount, number, or degree of.
To breed or propagate.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for multiply


[ mŭltə-plī′ ]

To perform multiplication on a pair of quantities.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.