heat wave

noun

: a period of unusually hot weather

Examples of heat wave in a Sentence

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.
Residents are being advised to avoid drinking coffee as a heat wave is expected to send temperatures into the triple digits across Nevada and California this weekend. Joe Edwards, MSNBC Newsweek, 29 May 2025 Not exactly a typical heat wave — but then again, few things about the recent weather pattern have been normal. Rick Hurd, Mercury News, 28 May 2025 This advisory is in effect until Friday at 8 p.m. During heat waves, consider the following tips from the NWS Stay hydrated: Remember to drink plenty of fluids. Ca Weather Bot, Sacbee.com, 27 May 2025 Precautions advised by the National Weather Service during a heat wave include: Slow down, especially children and seniors or any groups sensitive to the heat. Ashley Fredde, Idaho Statesman, 27 May 2025 See All Example Sentences for heat wave

Word History

First Known Use

1893, in the meaning defined above

Time Traveler
The first known use of heat wave was in 1893

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Cite this Entry

“Heat wave.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heat%20wave. Accessed 1 Jun. 2025.

Kids Definition

heat wave

noun
: a period of unusually hot weather

More from Merriam-Webster on heat wave

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