1. (n.) An instrument of offensive of defensive combat; something to fight with; anything used, or designed to be used, in destroying, defeating, or injuring an enemy, as a gun, a sword, etc.
2. (n.) Fig.: The means or instrument with which one contends against another; as, argument was his only weapon.
3. (n.) A thorn, prickle, or sting with which many plants are furnished.
Thesaurus Entries
A-weapons, armament, arms, biological weapons, conventional weapons, cutting edge, deadly weapons, edge, edge tool, featheredge, instruments of destruction, knife-edge, missilery, munitions, musketry, nuclear weapons, ordnance, razor-edge, side arms, small arms, thermonuclear weapons, weaponry, weapons
