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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An early May heat wave remains on schedule and may push the temperatures in the hottest part of the region into the upper 80s for Mother’s Day and a bit warmer on Monday, according to the National Weather Service. Rick Hurd, Mercury News, 8 May 2026 After logging its wettest April on record, the Boise area kicked off the month of May with a heat wave. Hali Smith, Idaho Statesman, 8 May 2026 The Sacramento Bee’s top stories on Friday spanned from coverage of a looming financial crisis at the region’s largest school district, a Mother’s Day weekend heat wave and a record-breaking day of philanthropy. Sacbee.com, 8 May 2026 While the study's authors and Haddock said more research is needed, the winter of 2025-2026 was a record-breaker in California, and intense marine heat waves were observed over the ocean. Dinah Voyles Pulver, USA Today, 6 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 14 May. 2026.

Kids Definition

heat wave

noun
: a period of unusually hot weather

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