doubt /daʊt/noun 3verb 5forms 5phrases 1 noun3 •a feeling that stops someone from fully believing something or being certain about itThere was some doubt as to who the child's real father was.I have doubts about how to convert this code to JavaScript. •A point of uncertainty, especially a yes/no or a multiple-choice questionMa'am, I have a doubt about today's lecture •a question (that one has) verb5 •To consider questionable or unlikely; to hesitate to believe; to lack confidence in; to question.He doubted that was really what you meant.I had no wish to go, though I doubt if they would have noticed me even if I had. •To harbour suspicion about; suspect. •(no longer used) To anticipate with dread or fear; to apprehend.Fear naught—nay, that I need not say— / But—doubt not aught from mine array. / Thou art my guest;—I pledged my word / As far as Coilantogle ford: [...] — 1810 •(no longer used) To dread, to fear.Edmond aþelstones broþer · after him was king · / Godmon & doutede · god þoru alle þing · — 1887 •(no longer used) To fill with fear; to affright.I'll tell ye all my fears, one single valour, / the vertues of the valiant Caratach / more doubts me then all Britain: [...] — 1613 formsdoubted · doubting · doubteth · doubts · doubtest Phrases with doubt room for doubtEventuality.