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Noun: certainty  sur-t(u)n-tee
  1. The state of being certain
    "his certainty reassured the others"
     
  2. Something that is certain
    "his victory is a certainty";
    - sure thing, foregone conclusion

Derived forms: certainties

See also: certain, incertain [non-standard], sure, uncertain, unsure

Type of: cognitive state, quality, state of mind

Antonym: uncertainty

Encyclopedia: Certainty