Definition of "Chance" :
noun: a risk involving danger
"You take a chance when you let her drive."
noun: 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
"If that phone call is for me, chances are it's my wife."
noun: an unknown and unpredictable phenomenon that causes an event to result one way rather than another
"We ran into each other by pure chance."
noun: the possibility of future success
noun: a possibility due to a favorable combination of circumstances
"Now is your chance."
verb: come upon, as if by accident; meet with
"She chanced upon an interesting book in the bookstore the other day."
verb: take a risk in the hope of a favorable outcome
verb: be the case by chance
"I chanced to meet my old friend in the street."
adjective: occurring or appearing or singled out by chance
"A chance occurrence."