- 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.
Origin of doubleheader
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for doubleheader
Two days later, in a doubleheader against the White Sox, he socked his 54th, a two-run shot in the fifth inning.Babe Ruth’s Summer of Records
September 29, 2013