heat wave

noun

: a period of unusually hot weather

Examples of heat wave in a Sentence

Recent Examples on the Web

As a heat wave fuels fast-moving wildfires across southern Europe, thousands of people have been forced to evacuate communities in France, Spain and Greece. — Charlie Carballo, USA Today, 30 July 2026

The heat dome responsible for this heat wave may also set records for its intensity in parts of Southern California and Arizona. — Andrew Freedman, CNN Money, 30 July 2026

Environmentalist and dive groups say the Corps is violating the Endangered Species Act by not incorporating recent findings by researchers on the alarming condition of endangered staghorn following a massive 2023 ocean heat wave. — Jenny Staletovich, Miami Herald, 30 July 2026

If a unit fails during a record-breaking heat wave as the result of age, excessive use or normal mechanical failure, insurance typically won't cover the replacement. — Angelica Leicht, CBS News, 30 July 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