certain definition, certain meaning | English dictionary

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Collins

certain

  

      adj  
1    postpositive   positive and confident about the truth of something; convinced  
I am certain that he wrote a book     
2    usually postpositive   definitely known  
it is certain that they were on the bus     
3    usually postpositive   sure; bound; destined  
he was certain to fail     
4    decided or settled upon; fixed  
the date is already certain for the invasion     
5    unfailing; reliable  
his judgment is certain     
6    moderate or minimum  
to a certain extent     
7    make certain of   to ensure (that one will get something); confirm  
      adv  
8    for certain   definitely; without a doubt  
he will win for certain     
      determiner  
9   
a    known but not specified or named  
certain people may doubt this     
b    (as pronoun; functioning as pl)  
certain of the members have not paid their subscriptions     
10    named but not known  
he had written to a certain Mrs Smith     
     (C13: from Old French, from Latin certus sure, fixed, from cernere to discern, decide)  
English Collins Dictionary - English Definition & Thesaurus  
Collins

certain

  
1    assured, confident, convinced, positive, satisfied, sure  
2    ascertained, conclusive, incontrovertible, indubitable, irrefutable, known, plain, true, undeniable, undoubted, unequivocal, unmistakable, valid  
3    bound, definite, destined, fated, ineluctable, inescapable, inevitable, inexorable, sure  
4    decided, definite, established, fixed, settled  
5    assured, constant, dependable, reliable, stable, staunch, steady, trustworthy, unfailing, unquestionable  
6    express, individual, particular, precise, special, specific  
  
Antonyms     
   disputable, doubtful, dubious, equivocal, fallible, indefinite, questionable, uncertain, unconvinced, undecided, unlikely, unreliable, unsettled, unsure  

English Collins Dictionary - English synonyms & Thesaurus  

Collaborative Dictionary     English Definition
adj.
Qualifies a person who has a deep understanding of a certain topic, usually feminism.
Example: Love hearing Daniel Radcliffe praise the HeForShe campaign, he is so woke!'
n.
a sound (usually a song, jingle) that one hears mentally for a certain period of time
n.
the mechanism of blocking certain features for people who don't pay, especially on freemium models, for newspapers for example
exp.
expression meaning that a situation is no longer certain or predictable and that anything can happen
originating from horse racing where "all bets are off" indicated that bets already made were null due to various unpredicted factors
exp.
face a specific situation; act in a certain way
E.g.: John went out of rehab a few days ago and he is determined to not go down that road again.
exp.
think alike about a certain topic; be aligned in opinions; feel the same way about smth.
exp.
use the authority given by a position (in society, in a company etc.) to determine someone to act in a certain manner
E.g: He is not eager to attend the event, but he has to be there because his boss pulled rank on him.
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