plural of double door: Multiple sets of paired doors.

Synonym of double door: A set of two adjoining doors that can be opened independently.

(rowing) A race in a double scull.

double or quits

Using or able to be used on both sides.

(of a number) composed of two digits, i.e. between 10 and 99.

(basketball) The award of two free throws on any sort of foul when enough fouls have been accumulated.

(military) To load cannons with twice the shot, for increased damage at the expense of range.

Made by molding a second layer of plastic around a plastic or metal base.

plural of double-ripper