a casual meeting.
a chance occurrence.
bad luck caused his downfall.
his prospects as a writer are excellent.
I chanced to meet my old friend in the street.
I happened upon the most wonderful bakery not very far from here.
if that phone call is for me, chances are it's my wife.
now is your chance.
seek help from casual passers-by.
She chanced upon an interesting book in the bookstore the other day.
the holiday gave us the opportunity to visit Washington.
the probability that an unbiased coin will fall with the head up is 0.5.
We find this idea in Plato.
we ran into each other by pure chance.
When you buy these stocks you are gambling.
you take a chance when you let her drive.