overheat

verb

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

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 source of the strong odor was traced to a circuit board that overheated, and it was replaced, Duffy said. Michael Loria, USA Today, 28 Mar. 2026 The officers have a shift schedule in place and a vet on standby to make sure their mounts don’t overheat. Aj Willingham, AJC.com, 27 Mar. 2026 Officials said a hiker became severely fatigued, overheated and was not able to safely descend. Tim Fang, CBS News, 23 Mar. 2026 Chakrabarti’s adaptation insists upon doing so, in ways that O’Farrell’s novel and Chloé Zhao’s lush, overheated film adaptation do not. Rhoda Feng, Vulture, 23 Mar. 2026 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 31 Mar. 2026.

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