An aircraft formerly operated by the military, but now owned privately.(noun)
Any aircraft decorated in military livery for display at airshows etc.(noun)
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Use "warbird" in a sentence
"A warbird was a very different story from the Vulcan craft."
"He was likely the last of his happy and peculiar breed, a "warbird" collector who had actually flown such extraordinary machines in the dangerous skies of World War II."
"And too small for a Romulan warbird, she added, before anyone could ask."