felon vs gaolbird

Other hyponyms of felon include accessary, accessory, arsonist, firebug, incendiary, blackmailer, extortioner, extortionist, bootlegger, moonshiner, briber, suborner, coconspirator, conspirator, machinator, plotter, desperado, desperate criminal, fugitive, fugitive from justice, gangster, mobster, highbinder, highjacker, hijacker, goon, hood, hoodlum, punk, strong-armer, thug, tough, toughie, jail bird, jailbird, abductor, kidnaper, kidnapper, snatcher, mafioso, gangster's moll, gun moll, moll, liquidator, manslayer, murderer, parolee, probationer, drug dealer, drug peddler, drug trafficker, peddler, pusher, racketeer, raper, rapist, habitual criminal, recidivist, repeater, scofflaw, contrabandist, moon-curser, moon curser, runner, smuggler, stealer, thief, traitor, treasonist, law offender, lawbreaker, violator.