n a possibility due to a favorable combination of circumstances
n an unknown and unpredictable phenomenon that causes an event to result one way rather than another
n a risk involving danger
n a measure of how likely it is that some event will occur; a number expressing the ratio of favorable cases to the whole number of cases possible
n the possibility of future success
v be the case by chance
v take a risk in the hope of a favorable outcome
v come upon, as if by accident; meet with