Something that could potentially endanger a person's health.

(English billiards) When one's cue ball strikes some other ball and causes that other ball to sink into a pocket. If the sunken ball is the red ball then one scores three points, but if the sunken ball is the other player's cue ball then one scores two points.

(English billiards) The situation where one's cue ball bounces off another ball and then sinks into a pocket. If the ball bounced off is the red ball, then three points are scored; but if it is the opponent's cue ball, then two points are scored.

(archaic) A game of chance played with dice for very small stakes.

(idiomatic) To make a guess; to guess.

plural of moral hazard

(economics, insurance) The prospect that a party insulated from risk may behave differently from the way it would behave if it were fully exposed to the risk.

Danger pay.

(statistics, medicine) A measure of the chance of an event in one group compared to that of another at a particular time or over a subset of a study's time; the ratio between two groups' hazard rates.

plural of hazard ratio