any venturesome undertaking especially one with an uncertain outcome;
a commercial undertaking that risks a loss but promises a profit;
an investment that is very risky but could yield great profits; "he knew the stock was a speculation when he bought it";
put forward, of a guess, in spite of possible refutation; "I am guessing that the price of real estate will rise again"; "I cannot pretend to say that you are wrong";
proceed somewhere despite the risk of possible dangers; "We ventured into the world of high-tech and bought a supercomputer";
put at risk; "I will stake my good reputation for this";
