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.
We didn’t warm up on the range before the match.
From The Wall Street Journal ● Aug. 17, 2026
When Rob Reiner threw out a ceremonial first pitch before a Dodgers-Braves game in 2010, Jake was photographed helping him warm up.
From Los Angeles Times ● Aug. 3, 2026
The meet, which was staged in a gym with one set of bleachers and fans sitting on mats, was an intimate warm up for the arena stage Ohashi will take at the U.S.
From Los Angeles Times ● Jul. 10, 2026
"Already we are starting to see sea surface temperatures in the central Pacific warm up drastically," he said.
From Barron's ● Jul. 10, 2026
“There are so many problems, Miss McDaniels,” I say, trying to warm up.
From "Merci Suárez Changes Gears" by Meg Medina
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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.