Gun
A gun is a ranged weapon designed to use a shooting tube (gun barrel) to launch typically solid projectiles,but can also project pressurized liquid (e.g. water guns/cannons, spray guns for painting or pressure washing, projected water disruptors, and technically also flamethrowers), gas (e.g. light-gas gun) or even charged particles (e.g. plasma gun).
https://en.wikipedia.org/wiki/Gun
