Definition of "tiebreaker" []

• An additional contest or period of play designed to establish a winner among tied contestants. Also called tiebreak. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The third tiebreaker is the clubs 'record against West playoff teams, which will give the No. 3 seed to Houston."
• "The next tiebreaker is greatest number of goals scored in all group matches."
• "The final set went 18 games because no tiebreaker is used in the fifth set of Davis Cup play."