What is literacy?

When asked the first day of class, "What is literacy?" I immediately thought someone who can read and write.

Throughout the course of the class, I've learned that literacy is much more.

Literacy to me now, is knowing much about a certain subject, or being able to understand a subject.

One could be technologically literate, athletically literate, and so on.

I feel like your everyday person would only picture literacy as a learned person- someone who could read and write. But there is so much more to literacy.