DECIDER


Meaning of DECIDER in English

de ‧ cid ‧ er /dɪˈsaɪdə $ -ər/ BrE AmE noun [countable usually singular]

the last part of a game or competition, which will show who the winner is:

This next round will be the decider.

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.