alliedPronunciation: /ˈalʌɪd, əˈlʌɪd/Translate allied | into French | into German | into Italian | into Spanish Definition of allied adjective joined by or relating to members of an alliance:allied territories the allied fleet (usually Allied) relating to Britain and her allies in the First and Second World Wars and after:the liberation of Paris by Allied troops (allied to/with) in combination or working together with:skilled craftsmanship allied to advanced technology connected; related:members of the medical and allied professionsallied in other Oxford dictionaries Definition of allied in the US English dictionary