1. (

• Allies ,

) the alliance of nations that fought the Axis in World War II and which (with subsequent additions) signed the charter of the United Nations in 1945 ;

2. (

• Allies ,

) in World War I the alliance of Great Britain and France and Russia and all the other nations that became allied with them in opposing the Central Powers ;

3. (

• allies

) an alliance of nations joining together to fight a common enemy ;

1. (

• ally

) become an ally or associate, as by a treaty or marriage; "He allied himself with the Communists" ;