heat wave

noun

: a period of unusually hot weather

Examples of heat wave in a Sentence

Recent Examples on the Web

It was followed by significant heat waves in September and October. — Iris Kwok, Los Angeles Times, 30 Oct. 2026

That moisture, said Swain, comes from the record-warm waters off parts of the West Coast, which are driven by El Niño and a recent marine heat wave. — Ava Berger, NPR, 29 Oct. 2026

The first is a major marine heat wave along the coast that started last year. — Sean MacAday, Sacbee.com, 29 Oct. 2026

Extreme heat waves and wildfires have contributed to unhealthy levels of smog and smoke around the world so far in 2026, a recent global analysis of air quality trends found. — Erin Douglas, Washington Post, 26 Oct. 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