heat wave

noun

: a period of unusually hot weather

Examples of heat wave in a Sentence

Recent Examples on the Web

Back-to-back marine heat waves and the approaching El Niño have driven up sea temperatures in their usual nesting locations. — Los Angeles Times, 25 Sep. 2026

In just one month we were hit with heat wave after heat wave, saw our air choked with wildfire smoke, and watched our streets become lakes after flash floods. — Illapa Sairitupac, New York Daily News, 23 Sep. 2026

Just two years ago, the Millstone agreement was widely blamed for a sudden spike in electricity rates amid a summer heat wave. — John Moritz, Hartford Courant, 18 Sep. 2026

The South is enduring a long heat wave as a heat dome sits over the region. — ABC News, 17 Sep. 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