decider
/dɪˈsaɪdər/
noun
- A person or thing that makes a decision, especially a final or important one.
- In a tie, the judge becomes the decider of the winner.
- The coach is the main decider of which players start the game.
- The weather will be the decider of whether we go hiking or stay home.
- In sports, a game or event that determines the winner of a series or competition.
- The final match was the decider for the championship title.
- The penalty shootout was the decider in the tied soccer match.
- After two wins each, the fifth game was the decider.