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.
Because of this, my friends and I often slept on top of the covers, overheating and having trouble falling asleep. Caroline Hughes, Travel + Leisure, 7 June 2026 Avoid overheating by picking up a lightweight layer for summer nights, such as this cotton Eddie Bauer quilt. Better Homes & Gardens, 6 June 2026 Fed rates increasing mean the Federal Reserve raises interest rates to stop the economy from overheating. Ananya Chetia, CNBC, 5 June 2026 When this happens, the belt may overheat and produce a distinct odor. Jessica Safavimehr, Southern Living, 5 June 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 12 Jun. 2026.

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