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Synonyms

Allies

American  
[al-ahyz, uh-lahyz] / ˈæl aɪz, əˈlaɪz /

plural noun

  1. (in World War I) the powers of the Triple Entente (Great Britain, France, Russia), with the nations allied with them (Belgium, Serbia, Japan, Italy, etc., not including the United States), or, loosely, with all the nations (including the United States) allied or associated with them as opposed to the Central Powers.

  2. the 26 nations that fought against the Axis in World War II and, with subsequent additions, signed the charter of the United Nations in San Francisco in 1945.

  3. the member nations of NATO.

Allies 1 British  
/ ˈælaɪz /

plural noun

  1. (in World War I) the powers of the Triple Entente (France, Russia, and Britain) together with the nations allied with them

  2. (in World War II) the countries that fought against the Axis. The main Allied powers were Britain and the Commonwealth countries, the US, the Soviet Union, France, China, and Poland See also Axis

"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
allies 2 British  
/ ˈælaɪz /

noun

  1. the plural of ally

"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
Allies Cultural  

  1. The victorious allied nations of World War I and World War II. In World War I, the Allies included Britain, France, Italy, Russia, and the United States. In World War II, the Allies included Britain, France, the Soviet Union, and the United States.

Etymology

Origin of Allies

Plural of ally

Compare meaning

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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.

President Franklin Delano Roosevelt suddenly announced it at the 1943 Casablanca conference as an aim of the World War II Allies, he did so off the cuff.

From MarketWatch • Mar. 12, 2026

The design team delivering the programme is to be led by Allies & Morrison working with Asif Khan Studio and engineers Buro Happold.

From BBC • Mar. 3, 2026

Appeared in the January 8, 2026, print edition as 'Trump Doctrine Confounds Allies, Foes'.

From The Wall Street Journal • Jan. 8, 2026

Allies framed the strikes as a law-enforcement action rather than an act of war.

From Salon • Jan. 3, 2026

Germany failed to match the Allies in tank development, producing just one model, the cumbersome A7V, manned by a crew of twelve, which appeared too late in the war to have any real impact.

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.