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 smell was traced to a circuit board that had overheated and was subsequently replaced, Duffy said in an update. Alexandra Skores, CNN Money, 13 Mar. 2026 Duffy added in a post on X that the cause of the strong odor was because of a circuit board that overheated. Mathew Schumer, Baltimore Sun, 13 Mar. 2026 This poses a challenge for people like me who get cold easily, but also despise the feeling of overheating due to over-layering. Harry Spampinato, Travel + Leisure, 10 Mar. 2026 Crafted from an elegant Italian wool, this robe is ideal for those who overheat or just like to wear their robe all day long without hindrance. Kate McGregor, Architectural Digest, 9 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

Browse Nearby Words

Cite this Entry

“Overheat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/overheat. Accessed 21 Mar. 2026.

More from Merriam-Webster on overheat

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster