action mechanism, action - the operating part that transmits power to a mechanism; "the piano had a very stiff action"

air gun, air rifle, airgun - a gun that propels a projectile by compressed air

ack-ack, ack-ack gun, antiaircraft, antiaircraft gun, pom-pom, flack, flak - artillery designed to shoot upward at airplanes

barrel, gun barrel - a tube through which a bullet travels when a gun is fired

breechloader - a gun that is loaded at the breech

cannon - heavy automatic gun fired from an airplane

cannon - heavy gun fired from a tank

cartridge ejector, ejector - a mechanism in a firearm that ejects the empty shell case after firing

cartridge extractor, cartridge remover, extractor - a mechanism in a firearm that pulls an empty shell case out of the chamber and passes it to the ejector

cartridge clip, cartridge holder, clip, magazine - a metal frame or container holding cartridges; can be inserted into an automatic gun

firearm, small-arm, piece - a portable gun; "he wore his firearm in a shoulder holster"

firing chamber, gun chamber - chamber that is the part of a gun that receives the charge

gas gun - a gun that fires gas shells

firing mechanism, gunlock - the action that ignites the charge in a firearm

gun muzzle, muzzle - the open circular discharging end of a gun

gun-sight, gunsight - a sight used for aiming a gun

gun trigger, trigger - lever that activates the firing mechanism of a gun

minute gun - (military) gun that is discharged once every minute (usually as part of a military funeral)

Quaker gun - a dummy gun or piece of artillery made usually of wood

safety catch, safety lock - guard consisting of a locking device that prevents a weapon from being fired

set gun, spring gun - a gun that is set to fire on any intruder that comes in contact with the wire that sets it off

gunstock, stock - the handle of a handgun or the butt end of a rifle or shotgun or part of the support of a machine gun or artillery gun; "the rifle had been fitted with a special stock"

weapon, weapon system, arm - any instrument or instrumentality used in fighting or hunting; "he was licensed to carry a weapon"

whaling gun - a gun (or device resembling a gun) for discharging a projectile (especially a harpoon) at a whale

armament - weaponry used by military or naval force

cannon - a large artillery gun that is usually on wheels

arbalest, arbalist, ballista, bricole, mangonel, onager, trebuchet, trebucket, catapult - medieval artillery used during sieges; a heavy war engine for hurling large stones and other missiles

field artillery, field gun - movable artillery (other than antiaircraft) used by armies in the field (especially for direct support of front-line troops)

four-pounder - an artillery gun that throws a shot weighing four pounds

gunstock, stock - the handle of a handgun or the butt end of a rifle or shotgun or part of the support of a machine gun or artillery gun; "the rifle had been fitted with a special stock"

battery - a collection of related things intended for use together; "took a battery of achievement tests"

shooter, shot - a person who shoots (usually with respect to their ability to shoot); "he is a crack shot"; "a poor shooter"

liquidator, manslayer, murderer - a criminal who commits homicide (who performs the unlawful premeditated killing of another human being)

pump - a mechanical device that moves fluid or gas by pressure or suction

aeroplane, airplane, plane - an aircraft that has a fixed wing and is powered by propellers or jets; "the flight was delayed due to trouble with the airplane"

auto, automobile, car, motorcar, machine - 4-wheeled motor vehicle; usually propelled by an internal combustion engine; "he needs a car to get to work"

foot lever, foot pedal, treadle, pedal - a lever that is operated with the foot

firing off, firing, discharge - the act of discharging a gun

armed forces, armed services, military, military machine, war machine - the military forces of a nation; "their military is the largest in the region"; "the military machine is the same one we faced in 1991 but now it is weaker"

shoot - fire a shot

machine gun - shoot with a machine gun

gun down - strike down or shoot down