WordWeb Online

1. Related by common characteristics or ancestry
   "allied species"; "allied studies"
    
2. United in a confederacy or league
   - confederate, confederative
    
3. Joined by treaty or agreement

1. Of or relating to or denoting the Allies in World War I
   "an allied offensive"; "the Allied powers"
    
2. Of or relating to or denoting the Allies in World War II
   "an Allied victory"; "the Allied armies"

1. Become an ally or associate, as by a treaty or marriage
   "He allied himself with the Communists"

See also: aligned, alliance, Allies, related, united

Type of: affiliate, associate, assort, consort

Encyclopedia: Allied