an unstable construction with playing cards; "he built three levels of his cardcastle before it collapsed"
a speculative scheme that depends on unstable factors that the planner cannot control; "his proposal was nothing but a house of cards"; "a real estate bubble"
a situation from which extrication is difficult especially an unpleasant or trying one; "finds himself in a most awkward predicament"; "the woeful plight of homeless people"
a venture undertaken without regard to possible loss or injury; "he saw the rewards but not the risks of crime"; "there was a danger he would do the wrong thing"
the probability of being exposed to an infectious agent
the probability of becoming infected given that exposure to an infectious agent has occurred
expose to a chance of loss or damage; "We risked losing a lot of money in this venture"; "Why risk your life?"; "She laid her job on the line when she told the boss that he was wrong"