Venture
WordNet
noun
(1) Any venturesome undertaking especially one with an uncertain outcome
(2) A commercial undertaking that risks a loss but promises a profit
(3) An investment that is very risky but could yield great profits
"He knew the stock was a speculation when he bought it"
verb
(4) 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"
(5) Proceed somewhere despite the risk of possible dangers
"We ventured into the world of high-tech and bought a supercomputer"
(6) Put at risk
"I will stake my good reputation for this"