warm up
Britishverb
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to make or become warm or warmer
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(intr) to exercise in preparation for and immediately before a game, contest, or more vigorous exercise
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to get ready for something important; prepare
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to run or operate (an engine, etc) until the normal working temperature or condition is attained, or (of an engine, etc) to undergo this process
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to make or become more animated or enthusiastic
the party warmed up when Tom came
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to reheat (already cooked food) or (of such food) to be reheated
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(tr) to make (an audience) relaxed and receptive before a show, esp a television comedy show
noun
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the act or an instance of warming up
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a preparatory exercise routine
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Prepare for exercise or an athletic event by stretching or practicing beforehand, as in It's important to warm up before you play any sport . The idiom is also applied to musicians getting ready to perform. [Late 1800s]
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Make enthusiastic, excited, or animated, as in He was good at warming up an audience for the main speaker . [Mid-1800s]
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Also, warm up to . Become friendlier or more receptive toward, as in I had a hard time warming up to my mother-in-law . [Early 1800s]
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Reach a temperature high enough to work efficiently, as in I'll go out and warm up the car . [Mid-1900s]
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Reheat food, as in If we warm up the leftovers, we'll have enough for everyone . [Mid-1800s]
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Approach a state of violence or confrontation, as in Racial tension was rapidly warming up . Also see heat up .
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.
Temperatures in Los Angeles are expected to warm up this week, coinciding with the first game of the U.S. men’s World Cup on Friday at SoFi stadium.
From Los Angeles Times • Jun. 8, 2026
Simply warm up your frozen meal and enjoy.
From Salon • May 30, 2026
Aldana Ramirez tries to warm up beside a brasero, a type of local heater, on a freezing night at Los Azules copper project in San Juan province, the epicenter of Milei's mining "revolution."
From Barron's • May 23, 2026
And this was Gorsuch’s problem—Maddin hadn’t refused to operate his vehicle; he had in fact operated it, driving it to the gas station to warm up.
From Slate • May 13, 2026
I mean, why would you run to warm up?
From "Ghost" by Jason Reynolds
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.
