ɪmˈbɑːk ɪmˈbɑɹk ˈhæzɚd ˈhazəd pɹɪˈtɛnd ˌspɛkjəˈleɪʃən steɪk ˈvɛn.t͡ʃɚ ˈvɛn.t͡ʃə ˈvɛn.t͡ʃɚ ˈvɛn.t͡ʃə any venturesome undertaking especially one with an uncertain outcome 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 a commercial undertaking that risks a loss but promises a profit 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 an investment that is very risky but could yield great profits he knew the stock was a speculation when he bought it