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 Europe, rivers running dry after yet another heat wave are once again revealing mementos left behind by sufferers of historic droughts past. Literary Hub, 30 Apr. 2026 Although Boise set multiple temperature records during a heat wave in late March, the weather should be milder this time around. Hali Smith, Idaho Statesman, 30 Apr. 2026 Keep the shrubs well-watered during heat waves. Brandee Gruener, Southern Living, 30 Apr. 2026 Last year, Baltimore reached 105 degrees Fahrenheit during a June heat wave, breaking a record. Sacoby Wilson, Baltimore Sun, 29 Apr. 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

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Cite this Entry

“Heat wave.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heat%20wave. Accessed 6 May. 2026.

Kids Definition

heat wave

noun
: a period of unusually hot weather

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