Chances, possibility (4)
I believe the answer is:
odds
I believe this is a double definition.
'chances' is the first definition.
(the odds of something happening)
'possibility' is the second definition.
(thesaurus)
(Other definitions for odds that I've seen before include "inequality" , "Chance" , "Bookies give them" , "at which one may be disagreeing" , "Probabilities" .)