Pronunciation: (dub'ul-hed'ur),[key] —n. 1. Sports. a. two games, as of baseball, between the same teams on the same day in immediate succession.
b. two games, as of basketball, between two different pairs of teams on the same day in immediate succession.
2. two performances or two events occurring one after the other or within a short time of each other.
3. a railroad train pulled by two locomotives.