Decider

noun

Definitions

Noun
  1. 1
    A person, divinity, or authoritative text which decides.

    "This written and revealed will of God I said was the Judge and Decider of all Questions."

  2. 2
    An event or action which decides the outcome of a contested matter. Australia, British

    "Four years on, France […] will meet Ireland again in the probable decider for their World Cup pool in September 21 in Paris."

  3. 3
    A Turing machine that halts regardless of its input.

Etymology

From decide + -er.

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