Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “supposition”

supposition

noun [C, U]
 
 
/ˌsʌpəˈzɪʃən/ formal
the belief that something is true although there is no proofGuesses and assumptions
(Definition of supposition from the Cambridge Learners Dictionary © Cambridge University Press)
Browse related topics

You are looking at an entry to do with Guesses and assumptions, but you might be interested in these topics from the Thinking, dreaming and ideas topic area:

Add Cambridge dictionaries to your browser to your website

Definitions of “supposition” in other dictionaries

Word of the Day

microbrewery

a small company that makes beer, usually using traditional methods, and often has a restaurant where its beer is served

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