i Register
In some senses, decider is marked as British. Watch for register when choosing this word.
decider
UK /dɪˈsaɪdə(ɹ)/ US /dɪˈsaɪdə(ɹ)/
noun 3
Definitions
noun
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.
The Determination of his Majesty, who is the only proper decider of this Matter.
2
An event or action which decides the outcome of a contested matter.
Four years on, France […] will meet Ireland again in the probable decider for their World Cup pool in September 21 in Paris.
[…] when the Welshman laid on the 74th-minute decider.
3
A Turing machine that halts regardless of its input.
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