UnscrambleTheWord.codecider
Is it a Scrabble word? See definition, points, and words you can make.
Is decider a Scrabble word?
Word Games
- Scrabble US/Canada (OTCWL) Yes
- Scrabble UK (SOWPODS) Yes
- Wordle No
- Words With Friends Yes
Scrabble US/Canada (OTCWL) 
Wordle 
Words With Friends What is the meaning of decider?
Definition
noun (English)
1. (of a controversy, question, etc) A person, divinity, or authoritative text which decides.Examples: "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."; "The god Adar, which, with its two oft-occurring idiographs Bar and Nin-ib, is preferably designated as the "Decider" (Entschneider)."
2. (chiefly British, Australia, sports) An event or action which decides the outcome of a contested matter.Examples: "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."; "Tensions threatened to boil over before the defending champion Gerwyn Price eventually overcame Kim Huybrechts in a sudden-death decider to reach the last 16 of the PDC World Championship."AustraliaBritish
3. (computer science) A Turing machine that halts regardless of its input.
Definition source: Wiktionary