any instrument or instrumentality used in fighting or hunting
"he was licensed to carry a weapon"
An instrument of attack or defense in combat or hunting, e.g. most guns, missiles, or swords; arm.
"The archer drew back his bowstring to release a sharp arrow as their primary weapon during the hunt."
In plain English: A weapon is an object made to hurt people or destroy things.
"The police officer lowered his weapon after seeing that no one was hiding there."
Usage: Use this word as a noun to refer specifically to tools designed for fighting or hunting, such as firearms and blades. It is often confused with "arm," which refers to the body part rather than an object used in combat.
To equip with a weapon; to arm.
"The soldiers were ordered to weapon their vehicles before crossing the border."
In plain English: To weapon something means to turn it into a tool for causing harm or fighting back against someone else.
"He weaponized his anxiety by refusing to speak during the meeting."
The word "weapon" comes from the Old English wǣpn and Middle English wepen. Its original meaning was simply "weapon," though its ultimate roots may trace back to a Proto-Indo-European form related to weaving.