doubt

[ dout ]
/ daʊt /

verb (used with object)

verb (used without object)

to be uncertain about something; be undecided in opinion or belief.

noun

Idioms for doubt

Origin of doubt

1175–1225; (v.) Middle English douten < Anglo-French, Old French douter < Latin dubitāre to waver, hesitate, be uncertain (frequentative of OL dubāre), equivalent to dub- doubt + -it- frequentative suffix + -āre infinitive suffix; (noun) Middle English doute < Anglo-French, Old French, derivative of the v.

usage note for doubt

Doubt and doubtful may be followed by a subordinate clause beginning with that, whether, or if: I doubt that (or whether or if ) the story is true. It is doubtful that (or whether or if ) the story is true. There is some doubt that (or whether or if ) the story is true. In negative or interrogative sentences, that almost always introduces the subordinate clause: I do not doubt that the story is true. Is it doubtful that the story is true? Is there any doubt that the story is true?
The expressions doubt but and doubt but that occur in all varieties of standard speech and writing: I don't doubt but she is sincere. There is no doubt but that the charges will affect his career. Doubt but what occurs mainly in informal speech and writing: There is no doubt but what the rainy weather will hurt the crops.

OTHER WORDS FROM doubt

British Dictionary definitions for no doubt

doubt
/ (daʊt) /

noun

verb

Derived forms of doubt

doubtable, adjective doubtably, adverb doubter, noun doubtingly, adverb

Word Origin for doubt

C13: from Old French douter, from Latin dubitāre

usage for doubt

Where a clause follows doubt in a positive sentence, it was formerly considered correct to use whether ( I doubt whether he will come ), but now if and that are also acceptable. In negative statements, doubt is followed by that: I do not doubt that he is telling the truth. In such sentences, but ( I do not doubt but that he is telling the truth) is redundant

Idioms and Phrases with no doubt (1 of 2)

no doubt

1

Probably, most likely, as in No doubt you've heard the news about Mother. [Early 1300s]

2

Also, without doubt or a doubt. Certainly, without question, as in He's guilty, no doubt, but he doesn't deserve such a long sentence, or That basketball player is without doubt the tallest man I've ever seen. [Early 1300s] Also see beyond a doubt.

Idioms and Phrases with no doubt (2 of 2)

doubt

see beyond a doubt; cast doubt on; give the benefit of the doubt; no doubt; shadow of a doubt.