Weapon

A weapon is an instrument of any kind, (as a club, knife, or gun) used to injure, defeat, kill, or destroy, or in warfare or combat to attack and overcome an enemy. Weapons may be used to attack and defend, and consequently also to threaten or protect. Metaphorically, anything used to damage (even psychologically) can be referred to as a weapon. A weapon can be as simple as a club or as complex as an intercontinental ballistic missile.