weapon

A weapon is something used to hurt someone. Soldiers use weapons like guns and even sometimes use "weapons of mass destruction" — like bombs. In school, the only weapon you should use is a spitball.

A solider engaging in battle needs a weapon, as does a police officer defending herself against a violent attacker. Some weapons are specially designed for killing or injuring, such as guns and crossbows, while in other cases an ordinary object, like a stick, can be used as a weapon. The Old English root is wæpen, "instrument of fighting or defense." The spelling is tricky, and most people just have to memorize the ea in weapon.

Definitions of weapon
1

n any instrument or instrumentality used in fighting or hunting

“he was licensed to carry a weapon
Synonyms:
arm, weapon system
Examples:
Excalibur
the legendary sword of King Arthur
Types:
show 72 types...
hide 72 types...
bow
a weapon for shooting arrows, composed of a curved piece of resilient wood with a taut cord to propel the arrow
bow and arrow
a weapon consisting of arrows and the bow to shoot them
brass knuckles, brass knucks, knuckle duster, knuckles, knucks
a small metal weapon; worn over the knuckles on the back of the hand
fire ship
a weapon consisting of a ship carrying explosives that is set adrift to destroy enemy ships
flamethrower
a weapon that squirts ignited fuel for several yards
gun
a weapon that discharges a missile at high velocity (especially from a metal tube or barrel)
knife
a weapon with a handle and blade with a sharp point
light arm
a rifle or pistol
missile
a rocket carrying a warhead of conventional or nuclear explosives; may be ballistic or directed by remote control
pike
medieval weapon consisting of a spearhead attached to a long pole or pikestaff; superseded by the bayonet
missile, projectile
a weapon that is forcibly thrown or projected at a targets but is not self-propelled
slasher
a weapon (a sword or dagger) used for slashing
sling
a simple weapon consisting of a looped strap in which a projectile is whirled and then released
lance, shaft, spear
a long pointed rod used as a tool or weapon
stun baton, stun gun
a weapon designed to disable a victim temporarily by delivering a nonlethal high-voltage electric shock
blade, brand, steel, sword
a cutting or thrusting weapon that has a long metal blade and a hilt with a hand guard
hatchet, tomahawk
weapon consisting of a fighting ax; used by North American Indians
W.M.D., WMD, weapon of mass destruction
a weapon that kills or injures civilian as well as military personnel (nuclear and chemical and biological weapons)
Greek fire
a mixture used by Byzantine Greeks that was often shot at adversaries; catches fire when wetted
air gun, air rifle, airgun
a gun that propels a projectile by compressed air
air-to-air missile
a missile designed to be launched from one airplane at another
air-to-ground missile, air-to-surface missile
a missile designed to be launched from an airplane at a target on the ground
ack-ack, ack-ack gun, antiaircraft, antiaircraft gun, flack, flak, pom-pom
artillery designed to shoot upward at airplanes
arrow
a projectile with a straight thin shaft and an arrowhead on one end and stabilizing vanes on the other; intended to be shot from a bow
assagai, assegai
the slender spear of the Bantu-speaking people of Africa
backsword
a sword with only one cutting edge
ballistic missile
a missile that is guided in the first part of its flight but falls freely as it approaches target
bayonet
a knife that can be fixed to the end of a rifle and used as a weapon
bioarm, biological weapon, bioweapon
any weapon usable in biological warfare
boomerang, throw stick, throwing stick
a curved piece of wood; when properly thrown will return to thrower
breechloader
a gun that is loaded at the breech
broadsword
a sword with a broad blade and (usually) two cutting edges; used to cut rather than stab
bullet, slug
a projectile that is fired from a gun
cannon
heavy automatic gun fired from an airplane
cannon
heavy gun fired from a tank
cannon ball, cannonball, round shot
a solid projectile that in former times was fired from a cannon
cavalry sword, saber, sabre
a stout sword with a curved blade and thick back
chemical weapon
chemical substances that can be delivered using munitions and dispersal devices to cause death or severe harm to people and animals and plants
crossbow
a bow fixed transversely on a wooden stock grooved to direct the arrow (quarrel)
Cupid's bow
a curved bow with reversed curve ends
cutlas, cutlass
a short heavy curved sword with one edge; formerly used by sailors
dagger, sticker
a short knife with a pointed blade used for piercing or stabbing
dart
a small narrow pointed missile that is thrown or shot
falchion
a short broad slightly convex medieval sword with a sharp point
fencing sword
a sword used in the sport of fencing
firearm, piece, small-arm
a portable gun
gas gun
a gun that fires gas shells
guided missile
a rocket-propelled missile whose path can be controlled during flight either by radio signals or by internal homing devices
halberd
a pike fitted with an ax head
handbow
a bow drawn by hand as distinguished from a crossbow
heat-seeking missile
a missile with a guidance system that directs it toward targets emitting infrared radiation (as the emissions of a jet engine)
javelin
a spear thrown as a weapon or in competitive field events
khukuri
a curved steel knife with a razor-sharp edge used in combat by the Gurkhas; has cultural and religious significance in Nepal
longbow
a powerful wooden bow drawn by hand; usually 5-6 feet long; used in medieval England
machete, matchet, panga
a large heavy knife used in Central and South America as a weapon or for cutting vegetation
minute gun
(military) gun that is discharged once every minute (usually as part of a military funeral)
atomic weapon, nuclear weapon
a weapon of mass destruction whose explosive power derives from a nuclear reaction
partisan, partizan
a pike with a long tapering double-edged blade with lateral projections; 16th and 17th centuries
Quaker gun
a dummy gun or piece of artillery made usually of wood
rapier, tuck
a straight sword with a narrow blade and two edges
seeker
a missile equipped with a device that is attracted toward some kind of emission (heat or light or sound or radio waves)
set gun, spring gun
a gun that is set to fire on any intruder that comes in contact with the wire that sets it off
shiv
a knife used as a weapon
pellet, shot
a solid missile discharged from a firearm
sidewinder
air-to-air missile with infrared homing device
spitball
a projectile made by chewing a piece of paper and shaping it into a sphere
trench knife
a knife with a double-edged blade for hand-to-hand fighting
trident
a spear with three prongs
vouge
a kind of pike used by foot soldiers in the 14th century
whaling gun
a gun (or device resembling a gun) for discharging a projectile (especially a harpoon) at a whale
yataghan
a long Turkish knife with a curved blade having a single edge
high explosive
a powerful chemical explosive that produces gas at a very high rate
Type of:
instrument
a device that requires skill for proper use

n a means of persuading or arguing

“he used all his conversational weapons
Synonyms:
artillery
Type of:
persuasion, suasion
the act of persuading (or attempting to persuade); communication intended to induce belief or action

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