NOUN (1)

1. someone who commits crimes for profit (especially one who obtains money by fraud or extortion);


VERB (1)

1. carry on illegal business activities involving crime;

WordNet (r) 3.0 (2006):

racketeer
    n 1: someone who commits crimes for profit (especially one who
         obtains money by fraud or extortion)
    v 1: carry on illegal business activities involving crime

Moby Thesaurus II by Grady Ward, 1.0:

64 Moby Thesaurus words for "racketeer":
   Judas, Mafioso, bad person, bandit, betrayer, black marketeer,
   blackmailer, bloodsucker, bootlegger, brigand, convict, criminal,
   crook, dacoit, dealer, deceiver, delinquent, desperado,
   desperate criminal, double-dealer, drug pusher, evildoer,
   extortionist, felon, fugitive, gallows bird, gangster, gaolbird,
   gray marketeer, harpy, hoodlum, jailbird, lawbreaker, leech,
   malefactor, malevolent, malfeasant, malfeasor, misfeasor, mobsman,
   mobster, moonshiner, outlaw, predator, profiteer, public enemy,
   pusher, quisling, raptor, scofflaw, shakedown artist, shark,
   sinner, swindler, thief, thug, traitor, transgressor, two-timer,
   vampire, villain, vulture, worker of ill, wrongdoer