/ Dictionary / Index D doubleheader: Meaning and Definition of Find definitions for: dou•ble•head•er Pronunciation: (dub'ul-hed'ur), [key] — n. two games, as of baseball, between the same teams on the same day in immediate succession. two games, as of basketball, between two different pairs of teams on the same day in immediate succession. two performances or two events occurring one after the other or within a short time of each other. a railroad train pulled by two locomotives. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: doubleheader (Thesaurus) double harness double-helical gear Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language