Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “four”


number    /fɔr, foʊr/
4: A square has four sides. a four-part television series Four can also mean four o’clock.
(Definition of four number from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of four

Definitions of “four” in other dictionaries

Word of the Day


friendly or helpful

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