heat wave

noun

: a period of unusually hot weather

Examples of heat wave in a Sentence

Recent Examples on the Web
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.
Climate change does its damage in a lot of ways—birthing hurricanes, heat waves, floods, droughts, and wildfires. Jeffrey Kluger, Time, 12 Nov. 2025 Communities can open cooling centers during heat waves, provide early warning systems and design drinking water systems that can handle more intense rainfall and runoff, reducing contamination risks. Vijay Limaye, The Conversation, 12 Nov. 2025 Research shows that global warming is making heat waves more frequent, longer-lasting and more intense everywhere. Andrea Thompson, Scientific American, 12 Nov. 2025 These affect both the Global North and South, from deadly wildfires in the US, Canada and Europe, to devastating heat waves in Pakistan and deadly floods in Vietnam. Andrew Freedman, CNN Money, 12 Nov. 2025 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 16 Nov. 2025.

Kids Definition

heat wave

noun
: a period of unusually hot weather

More from Merriam-Webster on heat wave

Last Updated: - Updated example sentences
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