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Meaning of triple-header

tri•ple-head•er

Pronunciation: (trip'ul-hed'ur), [key]
— n. Sports.
  1. a set of three games, as of basketball, each game being played in the same arena on the same day and often between different pairs of teams.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.