library

A library is a place where books and other media are kept, usually on shelves. Most of the time, people are allowed to borrow these things.

Example: I borrowed books at the public library today.

A library is a collection of books of other media. A person may call his/her collection of books a library.

Example: The university's online classical music library is very large.

In computing, a library or standard library (STL) is a collection of code and functions that can be used for software development and to make computer programs.