plural of speed bomb

(slang) A dose of the recreational drug speed wrapped in a cigarette paper and swallowed.

The speed at which a vehicle normally moves when traveling long distances.

plural of speed-up

Alternative form of speedup

(rail transport) The maximum speed at which trains can run on a given railway line, or section of line.

plural of speed order

(An order to observe) a (temporary) speed restriction.

(of a bicycle) Having twelve gears.

A bicycle having twelve gears.