Real: any kind of weapon that fires projectiles by way of explosive propellant. (This therefore excludes bows/arrows, crossbows, slingshots, peashooters etc.). A railgun, even though it doesn't use explosive propellent, is also a type of gun.
Fictional: energy weapons, e.g. laser, phaser, plasma, disruptor etc. etc. ray guns are one example.
The following tags are aliased to this tag: guns (learn more).
This tag implicates weapon (learn more).
The following tags implicate this tag: light_machine_gun, handgun, magical_musket, rifle, submachine_gun, machine_gun, machine_pistol, shotgun, smoking_gun, musket, holding_gun, and firearm (learn more).