Definition of "Risk" :

noun: a venture undertaken without regard to possible loss or injury

"He saw the rewards but not the risks of crime."

noun: the probability of being exposed to an infectious agent

noun: the probability of becoming infected given that exposure to an infectious agent has occurred

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

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

verb: expose to a chance of loss or damage

"We risked losing a lot of money in this venture."