heat wave

noun

Synonyms of heat wavenext
: 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.
Meanwhile, a heat wave left more than 40 million people under heat advisories and warnings amid Juneteenth celebrations. Dinah Voyles Pulver, USA Today, 20 June 2026 In heat waves, Aid stations could be hard-pressed to manage everyone affected. Arthur L. Kellermann, Forbes.com, 20 June 2026 The group also cited the effects of climate change and recent heat waves and drought. ABC News, 19 June 2026 The Bay Area’s marine layer has been back and seemingly reinforced with power for a few days following the hottest heat wave since March. Rick Hurd, Mercury News, 19 June 2026 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 22 Jun. 2026.

Kids Definition

heat wave

noun
: a period of unusually hot weather

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