Use the noun visibility to describe how well you can see something, like the great visibility from the top of a mountain on a clear day.
In addition to meaning "how well you can see," visibility can also mean "how well others can see something." So, the reflective stripes on your running pants give you visibility in the dark because they help other people see you. Another kind of visibility is being in the public eye, like an actor whose visibility helps him land roles in movies and promote the causes he cares about, like literacy or helping endangered animals.
