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Synonyms

armed forces

American  

plural noun

  1. military, naval, and air forces, especially of a nation or of a number of nations.

armed forces British  

plural noun

  1. the military forces of a nation or nations, including the army, navy, air force, marines, etc

"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 armed forces

First recorded in 1685–95

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.

Iran’s armed forces said before the U.S. blockade began that such a move would constitute an illegal “act of piracy.”

From The Wall Street Journal • Apr. 14, 2026

This culture is at the heart of a competent military, and indeed is essential to the morale and cohesion that makes the American armed forces the envy of the world.

From Slate • Apr. 13, 2026

"We will ask for special powers," she said, including to modernize police and deploy the armed forces in prisons.

From Barron's • Apr. 13, 2026

On Saturday, Iran continued to insist on state media that its armed forces controlled the strategic waterway.

From The Wall Street Journal • Apr. 11, 2026

When word of the German action reached the Russian capital, Czar Nicholas, after much hesitation, ordered the full mobilization of Russia’s armed forces.

From "The War to End All Wars: World War I" by Russell Freedman

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.