[n] the discharge of a gun as signal or as a salute in military ceremonies; "a twenty gun salute"
[n] a pedal that controls the throttle valve; "he stepped on the gas"
[n] large but transportable armament
[n] a hand-operated pump that resembles a gun; forces grease into parts of a machine
[n] a weapon that discharges a missile at high velocity (especially from a metal tube or barrel)
[n] a professional killer who uses a gun
[n] a person who shoots a gun (as regards their ability)
[v] shoot with a gun
accelerator, accelerator pedal, artillery, gas, gas pedal, grease-gun, gunman, gunslinger, heavy weapon, hired gun, hit man, ordnance, shooter, throttle, torpedo, triggerman