decider

• (UK) IPA^(key): /dɪˈsaɪdə(ɹ)/
• Rhymes: -aɪdə(ɹ)

decide +‎ -er

decider (plural deciders)

1. (of a controversy, question, etc) A person, divinity, or authoritative text which decides.
   • 1667, anon., "George Fox digg'd out of his burrowes, or An offer of disputation on fourteen proposalls...". John Foster, Boston, pp. 89-90:

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

   • 1758, Aaron Leaming and Jacob Spicer, The grants, concessions, and original constitutions of the province of New-Jersey, Philadelphia, p. 680:

     The Determination of his Majesty, who is the only proper decider of this Matter.

   • 1885, Friedrich Delitzsch, "General Notes: The Religion of the Kassites," Hebraica, vol 1 no 3 (Jan), p. 190:

     The god Adar, which, with its two oft-occurring idiographs Bar and Nin-ib, is preferably designated as the "Decider" (Entschneider).

   • 1967, David P. Gauthier, "How Decisions are Caused," The Journal of Philosophy, vol 64 no 5, 15 Mar, p. 151:

     Although the decider may know any of the principles in the sequence, he cannot know every such principle.

   • 2006 April 18, George W. Bush, White House press conference, Washington, DC:

     "I'm the decider, and I decide what is best."

2. (chiefly Britain, sports) An event or action which decides the outcome of a contested matter.
   • 2007 Feb 22 (action), Liverpool show of unity recalls old magic Guardian Sport:

     . . . when the Welshman laid on the 74th-minute decider.

   • 2007 Feb. 10 (event), France aim to end four years of regret with seven-week sacrifice, Guardian Sport:

     France will meet Ireland again in the probable decider for their World Cup pool.

3. (computing) A Turing machine that halts regardless of its input.

• decisor
• decisionmaker

• decider at OneLook Dictionary Search

• cidered, decried

• IPA^(key): /de.tsiˈder/

decider

1. to decide