speculation Synonyms

conjecture venture supposition guess surmise hypothesis rumination prediction guesswork inference surmisal rumor meditation prognostication wager bet gambling assumption stockjobbing studying supposal sweepstakes systemization staking speculate speculating projection prophecy raffle reasoning reckoning reflection reflexion theorizing risk jobbing sign talk theorem wagering weighing wonder forecasting scuttlebutt dirty laundry game of chance guesstimate idle talk brainstorming bridge whist