Synonyms and related words :
adventure, ante, ante up, back, bet, bet on, blind bargain, book, borderline case, call, chance, chance it, chunk, contingency, cover, double contingency, fade, gamble, gamble on, game, guess, handbook, hazard, lay, lay a wager, lay down, make a bet, meet a bet, open question, parlay, pass, piece of guesswork, play, play against, plunge, pot, punt, put on, question, rely on fortune, risk, run a chance, run the risk, see, set, set at hazard, shot, sight-unseen transaction, stake, stand pat, take a chance, take a flier, take chances, tempt fortune, toss-up, touch and go, trust to chance, try the chance, undecided issue, venture