9 Grammatical Pitfalls


[wep-uh n] /ˈwɛp ən/
any instrument or device for use in attack or defense in combat, fighting, or war, as a sword, rifle, or cannon.
anything used against an opponent, adversary, or victim:
the deadly weapon of satire.
Zoology. any part or organ serving for attack or defense, as claws, horns, teeth, or stings.
verb (used with object)
to supply or equip with a weapon or weapons:
to weapon aircraft with heat-seeking missiles.
Origin of weapon
before 900; Middle English wepen, Old English wǣpen; cognate with German Waffe, Old Norse vāpn, Gothic wēpna (plural)
Related forms
weaponed, adjective
weaponless, adjective
outweaponed, adjective
superweapon, noun
unweaponed, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for weapon
  • Federal college aid was never intended to be used as a weapon of enforcement.
  • The fire truck gets firefighters to their destination and is their frontline weapon.
  • Researchers have developed a potent weapon against the paralyzing disease botulism.
  • Military funded researchers are preparing to test a nonlethal weapon that combines light and sound.
  • For much of this period monetary policy was the weapon of choice.
  • Scientists have developed a new weapon for the war on drugs: a novel method for tracing the illicit substances on currency.
  • One doctor, however, thinks he has rediscovered an old weapon that could be useful in the fight against these nasties.
  • It was starting to look as though the long-hoped-for general weapon against a broad range of tumors would never materialize.
  • But that weapon can only be used once and leaves a trace of acrid smoke in the department ever afterward.
  • The fusion bomb was a genocidal weapon with no military use, he argued.
British Dictionary definitions for weapon


an object or instrument used in fighting
anything that serves to outwit or get the better of an opponent: his power of speech was his best weapon
any part of an animal that is used to defend itself, to attack prey, etc, such as claws, teeth, horns, or a sting
a slang word for penis
Derived Forms
weaponed, adjective
weaponless, adjective
Word Origin
Old English wǣpen; related to Old Norse vápn, Old Frisian wēpen, Old High German wāffan
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for weapon

Old English wæpen "instrument of fighting and defense," from Proto-Germanic *wæpnan (cf. Old Saxon wapan, Old Norse vapn, Danish vaaben, Old Frisian wepin, Middle Dutch wapen, Old High German waffen, German wafen (neuter), waffe (fem.)), from *webno-m, of unknown origin with no cognates outside Germanic.

Online Etymology Dictionary, © 2010 Douglas Harper
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Slang definitions & phrases for weapon



The buttocks; anus; ass

[1970s+; perhaps a variant of kazoo]

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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