overheat

verb

over·​heat ˌō-vər-ˈhēt How to pronounce overheat (audio)
overheated; overheating; overheats

transitive verb

1
: to heat to excess
2
: to stimulate or agitate unduly

intransitive verb

: to become heated beyond a safe or desirable point

Examples of overheat in a Sentence

I overheated the food in the microwave. Be careful not to overheat the engine.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The Monument Gray color option pairs with a black roof, which must seem like a good idea to people who don't live in the Southwest, where cars overheat before they're even started. ArsTechnica, 27 Aug. 2025 Plus, the mesh fabric keeps my feet from overheating. Jackie Cucco, Travel + Leisure, 23 Aug. 2025 Ruthie hid in a cabinet near the oven, prompting her new owner to order food delivery for three days so the animal wouldn't overheat. Lucy Notarantonio, MSNBC Newsweek, 22 Aug. 2025 But Buyer warns that tech markets have a history of overheating. Samantha Subin, CNBC, 15 Aug. 2025 See All Example Sentences for overheat

Word History

First Known Use

14th century, in the meaning defined at transitive sense 1

Time Traveler
The first known use of overheat was in the 14th century

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Cite this Entry

“Overheat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/overheat. Accessed 3 Sep. 2025.

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