Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “half hour”

half hour

noun [C]     (also half an hour)
a period of 30 minutes : The dollar surged against the yen in the final half hour of trading . Half an hour later , she was smiling and chatting as if nothing had happened . She is to host a new half-hour show which will be broadcast every weekday evening . Trains for Washington depart on the/every half hour (= at 10.30, 11.30, etc.).Specific periods of time
(Definition of half hour noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of half hour

Translations of “half hour”

Word of the Day


relating to behaviour between people that is pleasant and friendly, often despite a difficult situation

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