Bravo

1. (interj.) An exclamation expressive of applause, meaning 'well done!' Or 'excellent!'.

2. (n.) A daring villain; a bandit; one who sets law at defiance; a professional assassin or murderer.

Thesaurus Entries

Cain, alarmist, apache, assassinator, bloodletter, bloodshedder, bomber, bravo, burker, butcher, button man, cannibal, cutthroat, desperado, eradicator, executioner, exterminator, garroter, gorilla, gun, gunman, gunsel, hatchet man, head-hunter, hit man, homicidal maniac, homicide, killer, man-eater, man-killer, manslayer, massacrer, matador, murderer, pesticide, poison, poisoner, scaremonger, slaughterer, slayer, strangler, terrorist, thug, torpedo, trigger man