A small cannon attached to a swivel or pivot. It was usually located on a ship's rail so it could have a large range of fire, and could fire anything ranging from small round balls of lead to cannon balls.

A toy gun that fires a plug of potato by compressing the air in the barrel, forcing the potato projectile out at speed.

A toy gun that emits a loud pop by firing a cork from a barrel in which a piston slides, compressing the air and forcing the cork out. The cork is traditionally attached to the toy by a piece of string.

Alternative spelling of shotgun

To fire a machine gun / To shoot (people, etc.) with a machine gun

A weapon intended to immobilize, usually through delivery of an electric shock.

A toy gun used to shoot water.

A toy gun used to shoot water.

A gun that propels a projectile by compressed air.

A levered device for forcing grease into machinery. / (colloquial, due to its appearance) A small machine gun, particularly the .45 calibre M3 used by the US in WW2.