heat wave
noun
a period of abnormally hot and usually humid weather; heat event.
heatwave
-
a variation of
heat wave.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
By August 19, France had experienced 52 days under heatwave conditions since mid-June, with only a handful of cooler days to break them up -- a record-breaking figure with summer not even over yet.
From Barron's ● Aug. 25, 2026
The heat is expected to be fairly short-lived though and temperatures are unlikely to reach heatwave thresholds again before the end of August.
From BBC ● Aug. 24, 2026
Large areas of the seas around the UK and Europe, for example, have been in marine heatwave conditions for much of the year.
From BBC ● Aug. 24, 2026
If the heatwave continues, third and fourth-quarter GDP forecasts could get downgrades of between 0.1 and 0.2 percentage points, he says.
From The Wall Street Journal ● Aug. 19, 2026
Meditatively Campian watched the line of light as it dropped lower and lower, soon to flood the valley with its fierce heatwave.
From The Ruby Sword A Romance of Baluchistan by Bertram Mitford
