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Doubt can be a noun or a verb.
If you have a doubt or doubts about something, you feel uncertain about it and you don't know if it is true or possible.
If you have no doubts about something, you are certain that it is true.
If you say there is no doubt that something is true, you mean that it is certainly true.
You must use a that-clause after there is no doubt. Don't use an if-clause or a whether-clause.
You add no doubt to a statement to say that you are assuming that something is true, although you can't really be certain about it.
If you doubt whether something is true or possible, you think it is probably not true or possible.
If someone says that something is true, or asks you if something is true, you can show that you think it is unlikely by saying I doubt it.
Don't say 'I doubt so'.
Past participle: doubted
|Noun||1.||doubt - the state of being unsure of something|
arriere pensee, mental reservation, reservation - an unstated doubt that prevents you from accepting something wholeheartedly
indecision, indecisiveness, irresolution - doubt concerning two or more possible alternatives or courses of action; "his indecision was only momentary but the opportunity was lost"
peradventure - doubt or uncertainty as to whether something is the case; "this proves beyond peradventure that he is innocent"
suspense - an uncertain cognitive state; "the matter remained in suspense for several years"
|2.||doubt - uncertainty about the truth or factuality or existence of something; "the dubiousness of his claim"; "there is no question about the validity of the enterprise"|
|Verb||1.||doubt - consider unlikely or have doubts about; "I doubt that she will accept his proposal of marriage"|
|2.||doubt - lack confidence in or have doubts about; "I doubt these reports"; "I suspect her true motives"; "she distrusts her stepmother"|
uncertainty confidence, belief, conviction, certainty
disbelieve believe, accept, trust, buy (slang), swallow (informal), take on board, have faith in
"There lives more faith in honest doubt,"
"Believe me, than in half the creeds" [Alfred Tennyson In Memoriam A.H.H.]
"I show you doubt, to prove that faith exists" [Robert Browning Balaustion's Adventure]
"If a man will begin with certainties, he shall end in doubts; but if he will be content to begin with doubts, he shall end in certainties" [Francis Bacon The Advancement of Learning]
"Our doubts are traitors"
"And make us lose the good we oft might win"
"By fearing to attempt" [William Shakespeare Measure for Measure]
"Doubt of the reality of love ends by making us doubt everything" [Henri Frédéric Amiel Journal]
there is some doubt about it → sobre esto existen dudas
beyond doubt → fuera de duda
beyond all reasonable doubt → más allá de toda duda
to cast doubt on → poner en duda
to clear up sb's doubts → sacar a algn de dudas
to have one's doubts about sth → tener sus dudas acerca de algo
to be in doubt [person] → tener dudas, dudar; [sb's honesty etc] → ser dudoso
she was in doubt whether to → dudaba si ...
the matter is still in some doubt → el caso sigue siendo dudoso
if or when in doubt → en caso de duda
no doubt! → ¡sin duda!
no doubt he will come → seguro que viene
there is no doubt of that → de eso no cabe duda
there is no doubt that → es indudable que, no cabe duda de que
I have no doubt that it is true → no me cabe duda de que es verdad
let there be no doubt about it → que nadie dude de esto
the marks left no doubt about how he died → las señales no dejaban lugar a dudas sobre cómo murió
to throw doubt on → poner en duda
without (a) doubt → sin duda (alguna)
see also plant B2
I doubt it very much → lo dudo mucho
I never doubted you → nunca tuve dudas acerca de ti
to doubt sb's loyalty → dudar de la lealtad de algn
doubting Thomas (fig) → incrédulo/a m/f, escéptico/a m/f
I have my doubts → J'ai des doutes.
to raise doubts about sth → susciter des doutes à propos de qch
there can be little doubt that ... → il y a peu de doute (pour) que ...
without doubt, without a doubt → sans aucun doute
to be in doubt (= unsure) [person] → avoir des doutes (= uncertain) [thing] → incertain(e)
to be beyond doubt [ability] → être hors de doute; [result] → être sans appel
By the interval, the result was beyond doubt → À la mi-temps, le score était sans appel.
to show beyond doubt that ... → démontrer de manière irréfutable que ...
to show sth beyond doubt → démontrer amplement qch
to prove sth beyond doubt → prouver qch de manière irréfutable
to know beyond doubt that ... → avoir l'intime conviction que ...
no doubt (= probably) → sans doute
I doubt it → J'en doute.
I doubt it very much → J'en doute fort.
to doubt (that) ... (= consider it unlikely that) → douter que ... + subj
I doubt he'll agree → Je doute qu'il soit d'accord.
I don't doubt that ... (= consider it likely that ...) → je ne doute pas que ...
to doubt if ..., to doubt whether ... (= consider it unlikely that) → douter que ... + subj
to be in doubt → essere in dubbio
without (a) doubt → senza dubbio
beyond doubt → fuor di dubbio
if in doubt → nell'incertezza, in caso di dubbio
no doubt he will come → è probabile che venga
there is no doubt of that → su questo non c'è dubbio
I have my doubts about whether he'll come → ho i miei dubbi che venga
to doubt one's own eyes → non credere ai propri occhi
I doubt it very much → ne dubito proprio
you're a real doubting Thomas → sei proprio come San Tommaso