Longman Dictionary of Contemporary English - possibility

~ n 1 something that may happen or may be true + of  (the possibility of an enemy attack) a distinct/real possibility (=something that is quite likely to happen)  (A peace settlement now looks like a real possibility | there's a possibility (that) (=used to say that you think something might happen or be true))  (There's always a possibility that he might go back to Seattle.) 2 usually plural something that gives you an opportunity to do what you want + for  (The possibilities for improvement are endless.) a world of possibilities (=many opportunities)  (China's economic expansion has opened up a new world of possibilities for Western companies.) 3 exhaust all the possibilities to try every possible way of doing something 4 have possibilities if something has possibilities it could be made into something much better  (The house has great possibilities!)  (- see also within the realms of possibility realm (2))