The state of being certain.

Roget 484: belief; credence; credit; assurance; faith, trust, troth, confidence, presumption, sanguine expectation etc. (hope) 858; dependence on, reliance on.    persuasion, conviction, convincement^†, plerophory^†, self-conviction; certainty etc. 474; opinion, mind, view; conception, thinking; impression etc. (idea) 453; surmise etc. 514; conclusion etc. (judgment) 480.    tenet, dogma, principle, way of thinking; popular belief etc. (assent) 488.    firm belief, implicit belief, settled belief, fixed rooted deep-rooted belief, staunch belief, unshaken belief, steadfast belief, inveterate belief, calm belief, sober belief, dispassionate belief, impartial belief, well-founded belief, firm opinion, implicit opinion, settled opinion, fixed rooted deep-rooted opinion, staunch opinion, unshaken opinion, steadfast opinion, inveterate opinion, calm opinion, sober opinion, dispassionate opinion, impartial opinion, well-founded opinion &c.; uberrima fides [Lat.].    system of opinions, school, doctrine, articles, canons; article of faith, declaration of faith, profession of faith; tenets, credenda^†, creed; thirty-nine articles etc. (orthodoxy) 983.1; catechism; assent etc. 488; propaganda etc. (teaching) 537.    credibility etc. (probability) 472.    ... show more

Roget 474: certainty; necessity etc. 601; certitude, surety, assurance; dead certainty, moral certainty; infallibleness etc. adj.; infallibility, reliability; indubitableness, inevitableness, unquestionableness^†.    gospel, scripture, church, pope, court of final appeal; res judicata [Lat.], ultimatum positiveness; dogmatism, dogmatist, dogmatizer; doctrinaire, bigot, opinionist^†, Sir Oracle; ipse dixit [Lat.].    fact; positive fact, matter of fact; fait accompli [Fr.].    ... show more

Dutch: zekerheid

Something that is certain:
— His victory is a certainty.

synonyms: foregone conclusion, sure thing.

Dutch: vastigheid, zekerheid
Polish: pewność