chance
/ˈchan(t)s/
noun
something that happens unpredictably without discernible human intention or observable cause
the assumed impersonal purposeless determiner of unaccountable happenings : luck
the fortuitous or incalculable element in existence : contingency
Which cards you are dealt is simply a matter of chance.
an outcome decided by chance
verb
to take place, come about, or turn out by chance : happen
to have the good or bad luck
to come or light by chance
it chanced to rain that day
we chanced to meet
noun
accidental homicide not entirely without fault of the killer but without evil intent
haphazard action : confusion