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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Before that micro heat wave arrives, Central Texas will briefly feel the effects of the most recent cold front on Wednesday and Thursday morning. Mary Wasson, Austin American Statesman, 4 Feb. 2026 Across the globe in southern Australia, a heat dome is setting records, with temperatures reaching 120°F—the most severe heat wave the country has experienced in 16 years. Simmone Shah, Time, 30 Jan. 2026 The current heat wave is the most severe in 16 years, according to the Australian Bureau of Meteorology. Helen Regan, CNN Money, 30 Jan. 2026 The fire burned for six days before being fully contained amid an extreme heat wave that pushed temperatures in Oroville above 105 degrees, according to previous Bee reporting. Daniel Hunt, Sacbee.com, 29 Jan. 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 12 Feb. 2026.

Kids Definition

heat wave

noun
: a period of unusually hot weather

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