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.
Prevents nutrient loss from overheating, a top concern for breastfeeding parents. Matthew Kayser, USA Today, 12 Nov. 2025 It’s earned over 77,000 five-star ratings and is made from 100 percent microfiber that feels soft to the touch and keeps you warm without overheating. Jacqueline Tempera, PEOPLE, 12 Nov. 2025 The thick, cushioned sole keeps my feet cozy and blister-free, while the breathable fabric wicks moisture to prevent overheating on sunny hikes. Ariana Dickson, Travel + Leisure, 6 Nov. 2025 The bus fire that came days before the election captured the state of her campaign, overheated, off-course, and unable to recover. Samantha-Jo Roth, The Washington Examiner, 6 Nov. 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://www.merriam-webster.com/dictionary/overheat. Accessed 15 Nov. 2025.

More from Merriam-Webster on overheat

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