multiply
1 Americanverb (used with object)
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to make many or manifold; increase the number, quantity, etc., of.
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Arithmetic. to find the product of by multiplication.
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to breed (animals).
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to propagate (plants).
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to increase by procreation.
verb (used without object)
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to grow in number, quantity, etc.; increase.
- Synonyms:
- mushroom, grow, proliferate
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Arithmetic. to perform the process of multiplication.
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to increase in number by procreation or natural generation.
adverb
verb
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to increase or cause to increase in number, quantity, or degree
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(tr) to combine (two numbers or quantities) by multiplication
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(intr) to increase in number by reproduction
Other Word Forms
Etymology
Origin of multiply1
First recorded in 1225–75; Middle English multiplien, from Old French multiplier, from Latin multiplicāre; see multi-, ply 2
Origin of multiply2
Explanation
When you multiply two numbers, you increase the first by the same number that's specified by the second. In other words, when you multiply two by three, you add together three twos. When you're doing simple math problems, you can multiply by memorizing lists of times tables — or you can add one number as many times as the second number: four times two is the same as two fours, or eight. Another way to multiply is simply to increase or expand greatly: "If the diner starts serving homemade pie, their profits will multiply." The Latin root is multiplicare, "to increase," from multiplex, "having many folds."
Vocabulary lists containing multiply
Ratios and Proportional Relationships
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Number and Operations: Fractions
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Operations and Algebraic Thinking
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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.
Your 20s are an incredibly important time to save because of all the time your investments have to compound — that is, multiply.
From MarketWatch • Apr. 28, 2026
In others who have previously been infected, immunosuppression can allow the virus to reactivate and multiply.
From Science Daily • Apr. 15, 2026
Continuing from State Route 58, we joined State Route 41, watched oak trees and vineyards pop up and multiply, continued into Paso Robles and spent the night.
From Los Angeles Times • Apr. 10, 2026
But Mayor Kate Gallego says the local population is growing tired of seeing data centers multiply in their communities, straining water supplies and a power grid that are already at breaking point.
From Barron's • Mar. 15, 2026
One of the major goals of the second Five-Year Plan was to multiply the number of civil air routes across the USSR, covering extreme distances and connecting the far-flung corners of the huge country.
From "A Thousand Sisters" by Elizabeth Wein
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
