[tahy-brey-ker] 
| a system for breaking a tie score at the end of regulation play by establishing a winner through special additional play, usually of a fairly short duration, as in tennis and soccer. |
| tie·break·er (tī'brā'kər) n. An additional contest or period of play designed to establish a winner among tied contestants. Also called tiebreak. tie'break'ing adj. |
kər