#1 chance n. [opportunity] a possibility due to a favorable combination of circumstances; "the holiday gave us the opportunity to visit Washington"; "now is your chance". wn
#2 chance n. [luck, fortune, hazard] an unknown and unpredictable phenomenon that causes an event to result one way rather than another; "bad luck caused his downfall"; "we ran into each other by pure chance". wn
#3 chance n. a risk involving danger; "you take a chance when you let her drive". wn
#4 chance v. be the case by chance; "I chanced to meet my old friend in the street". wn
#5 chance n. [probability] 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; "the probability that an unbiased coin will fall with the head up is 0.5". wn
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