Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “postulate”


verb [I or T]     /ˈpɒs.tjʊ.leɪt/ US  /ˈpɑː.stjə-/ formal
to suggest a theory , idea , etc. as a basic principle from which a further idea is formed or developed : [+ that] It was the Greek astronomer , Ptolemy, who postulated that the Earth was at the centre of the universe .Suggestions and proposals
(Definition of postulate verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of postulate

More definitions for “postulate”

Definitions of “postulate” in other dictionaries

Translations of “postulate”

Word of the Day

best man

a male friend or relation of the bridegroom who stands with him and helps him during a marriage ceremony

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