weapon

1 of 2

noun

weap·​on ˈwe-pən 

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

transitive verb

: arm

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

Noun

The game includes familiar weapons and vehicles, such as lightsabers, DL-44 blaster pistols, Imperial TIE fighters and the X-Wing. —Barry Collins, Forbes.com, 3 May 2025

Amazon Released Hundreds of New Travel-friendly Clothes and Shoes—Our Top 12 Picks Are All Under $50 Outfit 1: Matching sets are the secret weapon of frequent flyers, making this Anrabess Two-piece Linen Set a fashion win—especially if you’re getting dressed before sunrise. —Rosie Marder, Travel + Leisure, 2 May 2025

Verb

With his speed and pass-catching skills, Loveland should quickly become a go-to weapon for Caleb Williams. Day 3 pick who could surprise: Luke Newman, G, Michigan State Jonah Jackson played in only four games last season, because of injuries. —Dane Brugler, New York Times, 28 Apr. 2025

Challengers of the rule, which included gun manufacturers and individual gun owners, contended the 1968 Gun Control Act didn't apply to weapon parts kits and that the administrative action was an overreach. —Devin Dwyer, ABC News, 26 Mar. 2025

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

Phrases Containing weapon

• assault weapon
• beam weapon
• biological weapon
• chemical weapon
• murder weapon
• weapon of last resort
• weapon of mass destruction

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