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1. Dictionary

   Cer·tain

   /ˈsərtn/

   

   adjective

   • 1. known for sure; established beyond doubt: "it's certain that more changes are in the offing" Similar unquestionablesuredefinitebeyond questionnot in questionnot in doubtbeyond doubtunequivocalindubitableundeniableirrefutableindisputableincontrovertibleincontestableobviouspatentmanifestevidentplaincleartransparentpalpableunmistakableconclusiverecognizedconfirmedacceptedacknowledgedundisputedundoubtedunquestionedunchallengeduncontestedthere are no two ways about itinformal:as sure as eggs is eggssurevery likelybounddestinedpredestinedfatedtrustedassured of doing somethinginformal:nailed oninevitableassureddestinedpredestinedfatedreliableunavoidableinescapableautomaticbound to happensure to happenunpreventableinexorableineluctablepredictablenecessaryout of one's handsinformal:in the bagreliabledependabletrustworthysoundfoolprooftestedtried and testedeffectiveefficaciousguaranteedsureunfailinginfallibleunerringinformal:sure-firedated:sovereignOpposite unthinkabledoubtfulpossibleunlikelyunreliable
   • ▪ having complete conviction about something; confident: "are you absolutely certain about this?" Similar sureconfidentpositiveconvincedin no doubtunshaken in one's beliefsecure in one's beliefeasy in one's mindsatisfiedassuredpersuadedhave no doubtnot questionhold the unwavering viewOpposite doubtful
   • 2. specific but not explicitly named or stated: "he raised certain personal problems with me" Similar determineddefinitefixedestablishedprecisedefinedexactexplicitexpressparticularspecificindividualspecialespecialOpposite undefinednamelessundifferentiatedgeneral
   • ▪ used when mentioning the name of someone not known to the reader or hearer: "a certain General Percy captured the town"

   pronoun

   • 1. some but not all: "certain of his works have been edited"

   Word Origin Middle English: from Old French, based on Latin certus ‘settled, sure’.

   Scrabble Points: 9

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2. www.merriam-webster.com › dictionary › certainCertain Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › certain

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   The meaning of CERTAIN is fixed, settled. How to use certain in a sentence. Synonym Discussion of Certain.

3. www.vocabulary.com › dictionary › certainCertain - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com › dictionary › certain

   Definitions of certain. adjective. established beyond doubt or question; definitely known. “what is certain is that every effect must have a cause”. “it is certain that they were on the bus”. “his fate is certain ”. “the date for the invasion is certain ”. synonyms: definite.

4. dictionary.cambridge.org › us › dictionaryCERTAIN | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › us › dictionary

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   CERTAIN meaning: 1. having no doubt or knowing exactly that something is true, or known to be true, correct, exact…. Learn more.

5. www.dictionary.com › browse › certainCERTAIN Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › certain

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   Certain definition: free from doubt or reservation; confident; sure. See examples of CERTAIN used in a sentence.

6. www.collinsdictionary.com › dictionary › englishCERTAIN definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › dictionary › english

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   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.

7. www.thefreedictionary.com › certainCertain - definition of certain by The Free Dictionary

   www.thefreedictionary.com › certain

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   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.

8. www.oxfordlearnersdictionaries.com › definition › american_englishcertain adjective - Definition, pictures, pronunciation and usage...

   www.oxfordlearnersdictionaries.com › definition › american_english

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   certain [not usually before noun] sure that you are right or that something is true: Are you absolutely certain about this? sure or certain? Like sure, certain is often used in negative statements and questions.

9. dictionary.cambridge.org › dictionary › learner-englishCERTAIN | meaning - Cambridge Learner's Dictionary

   dictionary.cambridge.org › dictionary › learner-english

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   CERTAIN definition: 1. completely sure of something, or knowing without doubt that something is true: 2. to know…. Learn more.

10. www.oxfordlearnersdictionaries.com › definition › englishcertain adjective - Definition, pictures, pronunciation and usage...

    www.oxfordlearnersdictionaries.com › definition › english

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    Definition of certain adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

11. www.britannica.com › dictionary › certainCertain Definition & Meaning | Britannica Dictionary

    www.britannica.com › dictionary › certain

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    CERTAIN meaning: 1 : not having any doubt about something convinced or sure; 2 : used with it to say that something is known to be true or correct.