Hazard
WordNet
noun
(1) An obstacle on a golf course
(2) An unknown and unpredictable phenomenon that causes an event to result one way rather than another
"Bad luck caused his downfall"
"We ran into each other by pure chance"
(3) A source of danger; a possibility of incurring loss or misfortune
"Drinking alcohol is a health hazard"
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) Take a risk in the hope of a favorable outcome
"When you buy these stocks you are gambling"
(6) Put at risk
"I will stake my good reputation for this"