certainty Meaning, Definition & Usage

  1. noun the state of being certain
    • his certainty reassured the others
  2. noun something that is certain
    sure thing; foregone conclusion.
    • his victory is a certainty

WordNet

Cer"tain*ty noun
Etymology
OF. certaineté.
Wordforms
plural Certainties
Definitions
  1. The quality, state, or condition, of being certain.
    The certainty of punishment is the truest security against crimes. Fisher Ames.
  2. A fact or truth unquestionable established.
    Certainties are uninteresting and sating. Landor.
  3. (Law) Clearness; freedom from ambiguity; lucidity.

Webster 1913