THESAURUS
bettor
adventurer, betting ring, boneshaker, cardshark, cardsharp, cardsharper, compulsive gambler, crap shooter, gambler, gamester, hazarder, petty gambler, piker, player, plunger, punter, sharp, sharper, sharpie, speculator, sport, sporting man, sportsman, tinhorn, tipster, tout, venturer, wagerer