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heat wave

noun

Definition of heat wavenext
as in dog days

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Example Sentences

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.
Recent Examples of heat wave French Champagne production is expected to fall by nearly half in 2026 due to a scorching heat wave that swept across the country, significantly harming crops. — Claire Carter, The Washington Examiner, 7 Sep. 2026 While the weather forecast does not project any kind of heat wave this week, temperatures on the surface of the Open’s acrylic-on-asphalt hard courts can approach 120 degrees after hours of direct sunlight. — Aaron Short, Curbed, 3 Sep. 2026 Cut to this September, and Hollywood brows are less sweaty, recent Los Angeles heat wave notwithstanding. — Ryan Gajewski, HollywoodReporter, 2 Sep. 2026 By August, nearly 97 million people were under dangerous heat conditions during another major heat wave, with heat indexes in some places expected to reach 115°F, according to the Associated Press. — Ryan Brennan, Miami Herald, 1 Sep. 2026 See All Example Sentences for heat wave
Recent Examples of Synonyms for heat wave
heat
Noun
  • As the airplane air-conditioning worked overtime in the desert heat, the grooms traversed the tarmac numerous times to shuttle water and supplies to the horses.
    — Danielle Rossingh, New York Times, 9 Sep. 2026
  • Novo Nordisk currently reuses some process water in cooling towers, where the water helps remove excess heat before eventually evaporating.
    — Neetika Walter, Interesting Engineering, 8 Sep. 2026
Definition of heat

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heat-treats
heat wave
heave
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Cite this Entry

“Heat wave.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/heat%20wave. Accessed 15 Sep. 2026.

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More from Merriam-Webster on heat wave

Britannica.com: Encyclopedia article about heat wave

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