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
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In early September 2022, a brutal heat wave pushed California’s power grid to the brink. Sufan Jiang, Fortune, 30 May 2026 In India, a heat wave has pushed electricity consumption to all-time highs, triggering blackouts, while consumers there also reel from rapidly rising fuel costs resulting from the Iran war. semafor.com, 29 May 2026 This latest heat wave is yet another reminder that climate change is having impacts around the planet. Chelsea Gohd, Space.com, 29 May 2026 Stark new data show how much the spring heat wave that has been affecting much of Western Europe has shattered temperature records. Adam Kovac, Scientific American, 29 May 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 4 Jun. 2026.

Kids Definition

heat wave

noun
: a period of unusually hot weather

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