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    cer·tain
    [ˈsərtn]
    adjective
    certain (adjective)
    1. known for sure; established beyond doubt:
      "it's certain that more changes are in the offing" · "she looks certain to win an Oscar"
      • having complete conviction about something; confident:
        "are you absolutely certain about this?" · "true and certain knowledge of the essence of existence"
    2. specific but not explicitly named or stated:
      "he raised certain personal problems with me" · "the exercise was causing him a certain amount of pain"
      • used when mentioning the name of someone not known to the reader or hearer:
        "a certain General Percy captured the town"
    pronoun
    (certain of)
    1. some but not all:
      "certain of his works have been edited"
    Origin
    Middle English: from Old French, based on Latin certus ‘settled, sure’.
    Translate certain to
    No translation found.
    Similar and Opposite Words
    adjective
    1. known for sure; established beyond doubt:
      unquestionable
      sure
      definite
      beyond doubt
      unequivocal
      indubitable
      undeniable
      irrefutable
      indisputable
      incontrovertible
      incontestable
      obvious
      patent
      manifest
      evident
      plain
      clear
      transparent
      palpable
      unmistakable
      conclusive
      recognized
      confirmed
      accepted
      acknowledged
      undisputed
      undoubted
      unquestioned
      unchallenged
      uncontested
      as sure as eggs is eggs
      bound
      destined
      predestined
      fated
      trusted
      nailed on
      inevitable
      assured
      reliable
      unavoidable
      inescapable
      automatic
      unpreventable
      inexorable
      ineluctable
      predictable
      necessary
      in the bag
      dependable
      trustworthy
      sound
      foolproof
      tested
      tried and tested
      effective
      efficacious
      guaranteed
      unfailing
      infallible
      unerring
      sure-fire
      sovereign
      beyond question
      not in question
      not in doubt
      there are no two ways about it
      very likely
      assured of doing something
      bound to happen
      sure to happen
      out of one's hands
      Opposite:
      unthinkable
      doubtful
      possible
      unlikely
      unreliable
    2. specific but not explicitly named or stated:
      determined
      definite
      fixed
      established
      precise
      defined
      exact
      explicit
      express
      particular
      specific
      individual
      special
      especial
      Opposite:
      undefined
      nameless
      undifferentiated
      general
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    1. Merriam Webster
      https://www.merriam-webster.com › dictionary › certain

      Certain Definition & Meaning - Merriam-Webster

       
    2. Cambridge Dictionary
      https://dictionary.cambridge.org › dictionary › english › certain

      CERTAIN | English meaning - Cambridge Dictionary

    4. Oxford Learner's Dictionaries
      https://www.oxfordlearnersdictionaries.com › us...

      certain adjective - Definition, pictures, pronunciation and usage …

    5. Vocabulary.com
      https://www.vocabulary.com › dictionary › certain

      Certain - Definition, Meaning & Synonyms - Vocabulary.com

    6. Collins Dictionary
      https://www.collinsdictionary.com › dictionary › english › certain

      CERTAIN definition and meaning | Collins English Dictionary

    7. People also ask
      What does make certain mean?
      Make certain (that) you lock the door when you leave. = Make certain to lock the door when you leave. We must make certain [= make sure] this doesn't happen again. She made certain she thanked each of them for coming. Make certain of your flight times [=be sure that you definitely know your flight times] before you leave for the airport.

      Certain Definition & Meaning | Britannica Dictionary

      britannica.com
      What is a synonym for certain?
      Some common synonyms of certain are cocksure, positive, and sure. While all these words mean "having no doubt or uncertainty," certain may apply to a basing of a conclusion or conviction on definite grounds or indubitable evidence. When would cocksure be a good substitute for certain?

      CERTAIN Synonyms: 186 Similar and Opposite Words - Merriam-Webster

      merriam-webster.com
      What does it mean when a person is certain?
      When you're certain, you're sure about something. When you raise your hand to give the answer, you feel certain that you are correct. Certain can mean "definite" or "sure to happen," like getting wet, a certain outcome of not having an umbrella in a rainstorm. It can also refer to a particular person or thing.

      Certain - Definition, Meaning & Synonyms - Vocabulary.com

      vocabulary.com
      What does a certain mean in a sentence?
      When you refer to certain of a group of people or things, you are referring to some particular members of that group. You can use a certain before the name of a person in order to indicate that you do not know the person or anything else about them. She managed to arrange for them to be hidden in the house of a certain Father Boduen.

      CERTAIN definition and meaning | Collins English Dictionary

      collinsdictionary.com
      What is the difference between make certain and seem certain?
      make certain You should make certain (that) everyone understands the instructions. seem certain The police seem certain (that) they will find the people responsible for the attack. [ + question word ] I'm not certain how much it will cost. certain about He was quite certain about his attacker's identity.

      CERTAIN | English meaning - Cambridge Dictionary

      dictionary.cambridge.org
      What does Certin mean?
      sėr′tān, or sėr′tin, adj. sure: not to be doubted: resolved: fixed: regular: inevitable: some: one.— advs. Cer′tainly, (Scot.) Cer′ty, Cer′tie.— ns. Cer′titude, Cer′tainty.—' A certain person,' implying some degree of contempt; A lady of a certain age, of an age best not stated accurately—at least no longer young.— For certain, assuredly.—

      What does certain mean? - Definitions.net

      definitions.net
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    8. Collins Dictionary
      https://www.collinsdictionary.com › ... › certain

      CERTAIN - Definition & Translations | Collins English Dictionary

    9. Cambridge Dictionary
      https://dictionary.cambridge.org › dictionary › learner-english › certain

      CERTAIN | meaning - Cambridge Learner's Dictionary

    10. Oxford English Dictionary
      https://www.oed.com › dictionary › certain_adj

      certain, adj., n., & adv. meanings, etymology and more | Oxford …

    11. Britannica
      https://www.britannica.com › dictionar…

      Certain Definition & Meaning | Britannica Dictionary

      Learn the meaning and usage of the adjective and pronoun certain, as well as the noun degree. Find out how to express certainty, doubt, and specificity with examples and synonyms.

    12. Cambridge Dictionary
      https://dictionary.cambridge.org › us › dictionary › english › certain

      CERTAIN | definition in the Cambridge English Dictionary

    13. Oxford Learner's Dictionaries
      https://www.oxfordlearnersdictionaries.com...

      certain adjective - Definition, pictures, pronunciation and usage …

    14. Dictionary
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      CERTAIN Definition & Meaning | Dictionary.com

    15. The Free Dictionary
      https://www.thefreedictionary.com › certain

      Certain - definition of certain by The Free Dictionary

    16. Collins Dictionary
      https://www.collinsdictionary.com › us › dictionary › english › certain

      CERTAIN definition in American English - Collins Online Dictionary

    17. Merriam Webster
      https://www.merriam-webster.com › thesaurus › certain

      CERTAIN Synonyms: 186 Similar and Opposite Words - Merriam …

    18. WordReference
      https://www.wordreference.com › definition › certain

      certain - WordReference.com Dictionary of English

    19. OneLook Dictionary Search
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      certain meaning: Sure of something; no doubt - OneLook

    20. Wordsmyth
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      certain | definition for kids | Wordsmyth Word Explorer Children's ...

    21. Collins Dictionary
      https://www.collinsdictionary.com › dictionary › english-word › certain

      CERTAIN - Meaning & Translations | Collins English Dictionary

    22. Definitions.net
      https://www.definitions.net › definition › certain

      What does certain mean? - Definitions.net

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