warbird in English dictionary warbird Meanings and definitions of "warbird" an aircraft formerly operated by the military, but now owned privately. any aircraft decorated in military livery for display at airshows etc. noun an aircraft formerly operated by the military, but now owned privately. noun any aircraft decorated in military livery for display at airshows etc. more Grammar and declension of warbird warbird ( plural warbirds) warbird (plural warbirds) more Sample sentences with "warbird" Declension Stem Try again Available translations Dutch French German Italian Japanese Portuguese Authors