A weapon is an object that is used to inflict damage or harm to another person or animal. Weapons can be categorized into three main categories: firearms, explosives, and blunt force.Firearms are weapons that use gunpowder or other explosive materials to propel a projectile through the air. Examples of firearms include pistols, rifles, and shotguns.Explosives are weapons that use chemical reactions to create an explosion. Examples of explosives include dynamite, grenades, and land mines.Blunt force weapons are weapons that rely on physical force to inflict damage. Examples of blunt force weapons include clubs, bats, and fists.