heat wave

noun

Definition of heat wavenext
as in dog days

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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 At the same time, the region, including Massachusetts, Delaware and New York, is facing a heat wave expected to last through the weekend. — Mike Snider, USA Today, 15 July 2026 Meanwhile, raging forest fires and a red-alert heat wave are shaking up France’s biggest national holiday, forcing the cancellation of traditional fireworks and firefighters’ balls. — ABC News, 14 July 2026 All that water vapor becomes most problematic during a heat wave, when an area of stagnant, high-pressure air traps any water vapor released, says Amir Souri, an atmospheric scientist at NASA’s Goddard Space Flight Center. — Meghan Bartels, Scientific American, 14 July 2026 That dome is set to bring another heat wave to most of the southern United States. — Rick Hurd, Mercury News, 9 July 2026 See All Example Sentences for heat wave
Recent Examples of Synonyms for heat wave
heat
Noun
  • Despite the oppressive heat, Xavi signs every single shirt and takes photos with members of the Johan Cruyff Foundation.
    — Jay Harris, New York Times, 22 July 2026
  • Crumbled feta adds a salty tang, and a touch of chile brings pops of heat that balance the salad’s citrusy notes.
    — Lynda Balslev, Mercury News, 21 July 2026
Definition of heat

Browse Nearby Words

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 22 Jul. 2026.

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More from Merriam-Webster on heat wave

Britannica.com: Encyclopedia article about heat wave

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