Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “swelter”


verb [I]     /ˈswel.tər/ US  /-tɚ/
(of a person ) to feel very hot : The soldiers were sweltering in their uniforms .Hot and heatSultriness and humidity
(Definition of swelter verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of swelter

Word of the Day

as husband and wife

in the same way as two people who are married

Word of the Day


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