Open English Wordnet
Nouns
(n)risk, risk of infectionthe probability of becoming infected given that exposure to an infectious agent has occurred
Verbs
(v)risk, put on the line, lay on the lineexpose 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”
(v)gamble, chance, risk, hazard, take chances, adventure, run a risk, take a chancetake a risk in the hope of a favorable outcome“When you buy these stocks you are gambling”