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Synonyms

arms

British  
/ ɑːmz /

plural noun

  1. weapons collectively See also small arms

  2. military exploits

    prowess in arms

  3. the official heraldic symbols of a family, state, etc, including a shield with distinctive devices, and often supports, a crest, or other insignia

    1. to carry weapons

    2. to serve in the armed forces

    3. to have a coat of arms

  4. armed and prepared for war

  5. to stop fighting; surrender

  6. military

    1. a position of salute in which the rifle is brought up to a position vertically in line with the body, muzzle uppermost and trigger guard to the fore

    2. the command for this drill

  7. to prepare to fight

  8. arm yourselves!

  9. indignant; prepared to protest strongly

"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

Etymology

Origin of arms

C13: from Old French armes, from Latin arma; see arm ²

Explanation

Arms are weapons. If a rebel group starts acquiring arms, it becomes a clear threat to its opponents. If you hear references on the news to "the arms race" or "arms exports," you know the subject is guns, bombs, bullets, and other weapons and ammunition. Any country with an army has some quantity of arms that can be used for self defense or military actions. In 1300, it was armes, "weapons of a warrior," from the Latin arma, "weapons," and also "tools of war."

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Vocabulary lists containing arms

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Arms researchers shown images and videos of the smaller drone’s components say its fuselage has been copied by dozens of Chinese companies even now selling similar models on China’s equivalent of Amazon, AliExpress.

From Los Angeles Times • May 24, 2026

Fiona, who had been at the Tynecastle Arms with her 10-year-old daughter Olivia, said she was "Proud and devastated" following the result.

From BBC • May 16, 2026

The email pitch from Victory Technology landed, apparently by accident, in the inbox of Iran Watch, part of the Wisconsin Project on Nuclear Arms Control that tracks Iranian weapons-proliferation networks.

From The Wall Street Journal • May 6, 2026

Firefighters are tackling a fire at the former Antrim Arms hotel in Ballycastle.

From BBC • Apr. 19, 2026

Arms wide, I angle myself to keep him from getting past, and it works.

From "Merci Suárez Changes Gears" by Meg Medina

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