noun
possibility
pah-suh-BIL-uh-tee/ˌpɑːsəˈbɪləti/
The capacity for something to happen or be available.
The cat's reaching paw raises the possibility that the vase will fall.

Etymology
Possibilis describes what can be done; the noun ending makes this a state or condition. The meaning then shifts from being possible to a particular thing that may happen or exist.
In context
there is every possibility that my brain activity will go down super quickly
More examples
- We cannot rule out the possibility that she is right.
- Taking the train is another possibility.
- The new schedule opens up more possibilities for weekend trips.
Forms
possibility · possibilities
possible adjective — Able to happen, exist, or be done.