Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “heatwave”

heatwave

noun [C]
 
 
/ˈhiːtweɪv/
a period of time, usually a few days or weeks, when the weather is much hotter than usualHot and heatSultriness and humidity
(Definition of heatwave from the Cambridge Learners Dictionary © Cambridge University Press)
Add Cambridge dictionaries to your browser to your website

Definitions of “heatwave” in other dictionaries

Word of the Day

sling

to throw or drop something carelessly

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More