English definition of “doubt”
› [C, U] when you are not certain about something, or do not trust someone or something: I have some doubts about his ability to do the job.
have no doubt › to be certain: [+ (that)] I have no doubt that I made the right decision.
there's no doubt › it is certain: [+ (that)] There is no doubt that he's a good player.
be in doubt › to not be certain: The future of the project is in doubt.
cast doubt on sth › to make something seem uncertain: Witnesses have cast doubt on the suspect's innocence.
without (a) doubt › certainly: She is without doubt a great musician.