<p><strong>Noun</strong></p><ul><li>Any instrument or device for use in attack or defense in combat, fighting, or war, as a sword, rifle, or cannon.</li><li>Anything used against an opponent, adversary, or victim: the deadly weapon of satire.</li><li>Zoology. Any part or organ serving for attack or defense, as claws, horns, teeth, or stings.</li></ul><p><strong>Verb</strong></p><ul><li>To supply or equip with a weapon or weapons: to weapon aircraft with heat-seeking missiles.</li></ul>