Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “doubt”

doubt

verb [T]     /daʊt/
B2 to not feel certain or confident about something or to think that something is not probable: I doubt whether/if I can finish the work on time. [+ that] They had begun to doubt that it could be done. He may come back tomorrow with the money, but I very much doubt it. I don't doubt his abilities.Suspecting and questioningQuestioning people and asking questions in generalCuriosity doubt sb/doubt sb's word C1 to not trust someone or believe what they say: He's never lied to me before, so I have no reason to doubt his word.Suspecting and questioningQuestioning people and asking questions in generalCuriosity Grammar:I doubt if, I don’t know whetherWe use if or whether to introduce clauses after verbs of doubting:See more
(Definition of doubt verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of doubt

Definitions of “doubt” in other dictionaries

Word of the Day

limber up

to do gentle exercises to stretch the muscles in order to prepare the body for more active physical exercise

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