heat wave

noun

: a period of unusually hot weather

Examples of heat wave in a Sentence

Recent Examples on the Web

Like other Mediterranean nations, Turkey faces mounting risks from heat waves, drought, water scarcity, wildfires and flooding. — ABC News, 5 Nov. 2026

El Niño conditions provide a favorable jet stream for these autumn storms, Swain says, but this year’s event is supercharged by a marine heat wave off the West Coast of Central and North America. — Stephanie Pappas, Scientific American, 4 Nov. 2026

If a specialized transformer fails during an extreme storm or heat wave, there aren’t just replacements waiting in a warehouse somewhere. — Jasmine Garland, The Conversation, 4 Nov. 2026

The business, which sells less ice cream in rainy weather and during extreme heat waves, hedges against temperature swings to recover losses. — Daniel Hernandez, Los Angeles Times, 4 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