on the double

Idioms  

1. Very quickly, as in You'd better get here on the double. This expression, also put as at the double, came from the military, where it means “double time”—that is, marching twice as fast as normally. [Early 1800s]

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Example Sentences

Remodelling her serve with the guidance of biomechanics expert Gavin MacMillan proved vital in cutting down on the double faults that had plagued her.

From BBC • Jan. 31, 2026

“It portrays the work on the double helix, the solving of the double helix, as the work of four equal contributors,” Dr. Comfort said.

From New York Times • Apr. 25, 2023

From the dugout, Ebel immediately noticed Betts’ comfort-level on the double play, when he snared a one-hopper, ran to second himself and leaped over a sliding Cody Bellinger to make a throw to first base.

From Los Angeles Times • Apr. 22, 2023

Matt Olson, who led off the seventh with a walk, scored from first base on the double.

From Seattle Times • May 27, 2022

Feeling no end of a fine bird, he gave a sharp whistle that brought his two warriors on the double.

From "Redwall" by Brian Jacques