decider
nounUK /dɪˈsaɪdə/
US /dɪˈsaɪdər/
A decider is a person or thing that makes a choice.
The referee was the decider in the close game.
SYNONYMS
RELATED WORDS
OTHER MEANINGS
2. The final game or point that settles who wins.
The last round was the decider of the match.
3. A person who settles a question or dispute.
She acted as the decider between the two teams.
4. Something that determines the outcome of a situation.
The weather was the decider for our picnic plans.