hit man

from WordNet (r) 3.0 (2006)
hit man
    n 1: a professional killer who uses a gun [syn: {gunman},
         {gunslinger}, {hired gun}, {gun}, {gun for hire},
         {triggerman}, {hit man}, {hitman}, {torpedo}, {shooter}]
    
from The Collaborative International Dictionary of English v.0.48
hit man \hit man\ n.
   1. A professional murderer, esp. one working for a criminal
      organization; also called {torpedo}. [Colloq.]
      [PJC]

   2. A slanderer working for political purposes to damage the
      reputation of an opponent; a {hatchet man}.
      [PJC]
    
from Moby Thesaurus II by Grady Ward, 1.0
42 Moby Thesaurus words for "hit man":
      Cain, apache, assassin, assassinator, bloodletter, bloodshedder,
      bravo, burker, butcher, button man, cannibal, cutthroat, desperado,
      eradicator, executioner, exterminator, garroter, gorilla, gun,
      gunman, gunsel, gunslinger, hatchet man, head-hunter,
      homicidal maniac, homicide, killer, man-eater, man-killer,
      manslayer, massacrer, matador, murderer, pesticide, poison,
      poisoner, slaughterer, slayer, strangler, thug, torpedo,
      trigger man

    

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