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
Photo : Matthew Millman Solar panels heat up the water for the pool.
—
Tori Latham, Robb Report, 9 Apr. 2025
Meanwhile, the competition in the AI race has only been heating up, as Chinese startup DeepSeek unveiled a powerful model in January.
—Bryan Mena, CNN Money, 8 Apr. 2025
As the global temperature rises, and the tension around Greenland heats up, as the U.S. reconsiders its role in the Arctic, CIFF and CPHFW stand at the center of a quietly powerful cultural narrative.
—Stephan Rabimov, Forbes.com, 8 Apr. 2025
Reavis 5-4 (8) Tino Villagomez heats up at the top of the lineup as Rams go 2-2 in Florida tournament.
10.
—Steve Millar, Chicago Tribune, 7 Apr. 2025
See All Example Sentences for heat up
Examples are automatically compiled from online sources to
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Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
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Tori Latham, Robb Report, 9 Apr. 2025
Meanwhile, the competition in the AI race has only been heating up, as Chinese startup DeepSeek unveiled a powerful model in January.
—Bryan Mena, CNN Money, 8 Apr. 2025
As the global temperature rises, and the tension around Greenland heats up, as the U.S. reconsiders its role in the Arctic, CIFF and CPHFW stand at the center of a quietly powerful cultural narrative.
—Stephan Rabimov, Forbes.com, 8 Apr. 2025
Reavis 5-4 (8) Tino Villagomez heats up at the top of the lineup as Rams go 2-2 in Florida tournament.
10.
—Steve Millar, Chicago Tribune, 7 Apr. 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 13 Apr. 2025.
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