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.
Weather concerns will likely continue into next week, as a heat wave is expected to send temperatures soaring across the country, starting this weekend. Melanie Anzidei, New York Times, 22 June 2025 Traffic warden Rai Rogers mans his street corner during an 8-hour shift under the hot sun in Las Vegas, Nevada on July 12, 2023, where temperatures reached 106 degrees amid a heat wave. Joe Edwards, MSNBC Newsweek, 20 June 2025 Similarly, the plethora of daylight throughout the summer continues to heat up the atmosphere, causing peak heat waves to usually hit in late July. Alex Music, Idaho Statesman, 18 June 2025 As the week goes on, heat will expand into the Midwest and the Great Lakes area before engulfing the Northeast this weekend in what will be the region’s first prolonged heat wave. Denise Chow, NBC news, 18 June 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

Browse Nearby Words

Cite this Entry

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

Kids Definition

heat wave

noun
: a period of unusually hot weather

More from Merriam-Webster on heat wave

Last Updated: - Updated example sentences
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