Webster's Revised Unabridged Dictionary · 1913

Weapon

Weapon (wep"un; 277) , noun

[Old English wepen, Anglo-Saxon wapen; akin to Old Saxon wāpan, OFries. wēpin, wēpen, Dutch wapen, German waffe, Old High German waffan, wāfan, Icelandic vāpn, Danish vaaben, Swedish vapen, Gothic wēpna, pl.; of uncertain origin. Compare Wapentake.]

1.
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.
The weapons of our warfare are not carnal. — 2 Cor. x. 4
They, astonished, all resistance lost, All courage; down their idle weapons dropped. — Milton
2.
Figuratively: The means or instrument with which one contends against another; as, argument was his only weapon.
Woman's weapons, water drops. — Shakespeare
3.
(Botany) A thorn, prickle, or sting with which many plants are furnished.
Collocations (2)
Concealed weapons , See under Concealed.
Weapon salve , a salve which was supposed to cure a wound by being applied to the weapon that made it. [Obsolete] — Boyle