weapon

1 of 2

noun

weap·​on ˈwe-pən How to pronounce weapon (audio)
1
: something (such as a club, knife, or gun) used to injure, defeat, or destroy
2
: a means of contending against another

weapon

2 of 2

verb

weaponed; weaponing; weapons

Examples of weapon in a Sentence

Noun assault with a deadly weapon The pitcher's slider is his most effective weapon. a new weapon in the fight against cancer The mayor's campaign unleashed its secret weapon.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Still, Russia is genuinely alarmed at the prospect of US weapons, even defensive Patriot missile defense systems, flowing back into Ukraine. Matthew Chance, CNN Money, 15 July 2025 One of those flaws is a lack of top-tier weapons for superstar quarterback Josh Allen to work with. Evan Massey, MSNBC Newsweek, 15 July 2025
Verb
Lobbing an anti-satellite, or counter-space, weapon into the same orbital plane as its potential target ties Russia's hands. Robert Pearlman, ArsTechnica, 11 July 2025 There are two basic types of nuclear fuel: plutonium, which is produced in reactors, and uranium, which is enriched to weapon grade in centrifuges. Siegfried S. Hecker, Foreign Affairs, 4 Dec. 2017 See All Example Sentences for weapon

Word History

Etymology

Noun

Middle English wepen, from Old English wǣpen; akin to Old High German wāffan weapon, Old Norse vāpn

First Known Use

Noun

before the 12th century, in the meaning defined at sense 1

Verb

before the 12th century, in the meaning defined above

Time Traveler
The first known use of weapon was before the 12th century

Browse Nearby Words

Cite this Entry

“Weapon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/weapon. Accessed 21 Jul. 2025.

Kids Definition

weapon

noun
weap·​on
ˈwep-ən
1
: something (as a gun, knife, or club) used to injure, defeat, or destroy
2
: something with which one fights or struggles against another

More from Merriam-Webster on weapon

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