The likeliness of a given event occurring
Something that may occur or be done
The condition of being possible
A possible happening
The possibility has crossed my mind.
"Don't even think about moving up here and leaving me in New York," my new wife snarled, removing that possibility from consideration.
I think that possibility has been eliminated.
No, I suppose the possibility of snakes does pose a bigger threat.
Children had been a possibility after all.