Definition of "decider" []

• A person, divinity, or authoritative text which decides. (noun)
• An event or action which decides the outcome of a contested matter. (noun)
• A Turing machine that halts regardless of its input. (noun)

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• "United have written to the Football Association on behalf of Ferguson after he was charged with improper conduct for praising the referee Howard Webb prior to the title decider against Chelsea."
• "United will now look ahead to Wednesday's Champions League semi-final second leg ahead of what could prove to be a title decider against Carlo Ancelotti's Chelsea."
• "Sunday's clash was originally billed as a title decider but Arsenal fell nine points behind United after a dismal week that began with draws against"