heat up
phrasal verb
heated up; heating up; heats up
1
: to become warm or hot
The morning started out cold but it heated up quickly.
2
: to become more active, intense, or angry
Their conversation started to heat up.
Competition between the two companies is heating up.
3
heat (something) up
or heat up (something)
: to cause (something) to become warm or hot
Could you heat up the vegetables, please?
Examples of heat up in a Sentence
Recent Examples on the Web
But Texas could heat up again at any time thanks to proven stars such as All-American catcher Reese Atwood (.408, 17 HRs), senior star Mia Scott (.438) and sophomore pitcher Teagan Kavan (21-4, 2.46), who threw 14 consecutive scoreless innings in last year’s WCWS.
—
Stewart Mandel, New York Times, 15 May 2025
The grill heats up quickly and will stay consistent throughout the entire cook.
—Christopher Murray
May Earn A Commission If You Buy Through Our Referral Links. This Content Was Created By A Team That Works Independently From The Fox Newsroom., FOXNews.com, 13 May 2025
In the recipe for two published in the study, the researchers used 5 grams (0.18 ounce) of cornstarch or potato starch dissolved in water, heated up gently to form a gel, then cooled down with more water before being blended with 200 grams (7 ounces) of pecorino cheese.
—Francesca Giuliani Hoffman, CNN Money, 9 May 2025
After a terrible slump, the third baseman is starting to heat up.
—Patrick Saunders, Denver Post, 9 May 2025
See All Example Sentences for heat up
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Stewart Mandel, New York Times, 15 May 2025
The grill heats up quickly and will stay consistent throughout the entire cook.
—Christopher Murray
May Earn A Commission If You Buy Through Our Referral Links. This Content Was Created By A Team That Works Independently From The Fox Newsroom., FOXNews.com, 13 May 2025
In the recipe for two published in the study, the researchers used 5 grams (0.18 ounce) of cornstarch or potato starch dissolved in water, heated up gently to form a gel, then cooled down with more water before being blended with 200 grams (7 ounces) of pecorino cheese.
—Francesca Giuliani Hoffman, CNN Money, 9 May 2025
After a terrible slump, the third baseman is starting to heat up.
—Patrick Saunders, Denver Post, 9 May 2025
See All Example Sentences for heat up
Cite this Entry
“Heat up.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heat%20up. Accessed 21 May. 2025.
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