Meaning of gun

Definition of gun

(noun) a weapon that discharges a missile at high velocity (especially from a metal tube or barrel)
a person who shoots a gun (as regards their ability)
a professional killer who uses a gun
a hand-operated pump that resembles a pistol; forces grease into parts of a machine
a pedal that controls the throttle valve; "he stepped on the gas"
the discharge of a firearm as signal or as a salute in military ceremonies; "two runners started before the gun"; "a twenty gun salute"
(verb) shoot with a gun

Other information on gun

WIKIPEDIA results for gun
Amazon results for gun