Definition of "Hazard" :

noun: an obstacle on a golf course

noun: an unknown and unpredictable phenomenon that causes an event to result one way rather than another

noun: a source of danger; a possibility of incurring loss or misfortune

"Drinking alcohol is a health hazard."

verb: put forward, of a guess, in spite of possible refutation

verb: take a risk in the hope of a favorable outcome

verb: put at risk