weapon: Meaning and Definition of

weap•on

1. any instrument or device for use in attack or defense in combat, fighting, or war, as a sword, rifle, or cannon.
2. anything used against an opponent, adversary, or victim: the deadly weapon of satire.
3. any part or organ serving for attack or defense, as claws, horns, teeth, or stings.

1. to supply or equip with a weapon or weapons: to weapon aircraft with heat-seeking missiles.