tiebreak
noun /ˈtaɪbreɪk/
  /ˈtaɪbreɪk/
(British English) (North American English tiebreaker)
- (in tennis) a period of extra play to decide who is the winner of a set when both players have won six games
- The first set was won on a tiebreak.
 - Osaka won the tiebreak 7–5.