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.
Some 40,000 people were initially ordered to evacuate after a tank storing a toxic industrial chemical overheated and caused pressure to build up on May 21. Christopher Cann, USA Today, 26 May 2026 The soft fabric will feel nice against your skin without overheating you in the sun. Caroline Hughes, Travel + Leisure, 26 May 2026 Sections lower in the nozzle that were not cooled began to overheat and sag while molten plastic dripped from the engine outlet. Kaif Shaikh, Interesting Engineering, 25 May 2026 Airflow from vent hoses becomes restricted, and things can overheat. Maria Sabella, The Spruce, 24 May 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 29 May. 2026.

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