heat wave

noun

: a period of unusually hot weather

Examples of heat wave in a Sentence

Recent Examples on the Web

Climate change, coupled with this year's extra-strong El Niño -- a temporary warming in parts of the equatorial Pacific that increase extreme events such as heat waves, floods and droughts -- are a warning of what could be in store. — Arkansas Online, 13 Nov. 2026

The importance of these two enormous natural carbon sinks cannot be overstated as global temperatures rise, fueling heat waves, fires, storms, floods and droughts around the world. — Andrew C. Manning, The Conversation, 13 Nov. 2026

Climate change, coupled with this year’s extra-strong El Niño — a temporary warming in parts of the equatorial Pacific that increases extreme events such as heat waves, floods and droughts — are a warning of what could be in store. — Suzan Fraser, Los Angeles Times, 13 Nov. 2026

Its effects are already being felt along the coast, where an extremely strong marine heat wave has been made more intense by El Niño. — Sean MacAday, Sacbee.com, 12 Nov. 2026

Word History

First Known Use

1893, in the meaning defined above

Rhymes for heat wave

• agave
• behave
• concave
• conclave
• enclave
• engrave
• enslave
• forgave
• landgrave
• margrave
• shortwave
• aftershave

Kids Definition

heat wave

noun

: a period of unusually hot weather