WordNet (r) 3.0 (2006):

pinball
    n 1: a game played on a sloping board; the object is to propel
         marbles against pins or into pockets [syn: pinball,
         pinball game]

Moby Thesaurus II by Grady Ward, 1.0:

24 Moby Thesaurus words for "pinball":
   bingo, card games, chuck and toss, chuck farthing, chuck-a-luck,
   crack-loo, crap game, crap shooting, craps, fan-tan, hazard,
   horse racing, keno, lotto, pitch and toss, policy, rouge et noir,
   roulette, shell game, sweepstake, sweepstakes, the numbers,
   the numbers game, trente-et-quarante