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
That very weapon is now being used against them in the opening weeks of the campaign. Mark Carey, New York Times, 16 Oct. 2025 Taking over for Brady after his retirement following the 2022 season, was Mayfield, who is off to the best start of his NFL career through six games even while managing without several key offensive weapons. Cole Sullivan, MSNBC Newsweek, 15 Oct. 2025
Verb
The former Rocky Flats weapons plant, which produced plutonium triggers for nuclear bombs, drew thousands of protesters for years to the site north of Denver, including such prominent activists as Daniel Ellsberg and Beat poet Allen Ginsberg. Judith Kohler, Denver Post, 13 Oct. 2025 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 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 18 Oct. 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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