Library (noun)

1. A building or room containing collections of books, periodicals, and sometimes films and recorded music for use or borrowing by the public or the members of an institution.
2. A collection of books and other literary or musical works.
3. A collection of resources or data stored electronically, such as software libraries or image libraries.

Origin:

Late middle english: via old french from latin liber "book" (in medieval latin "collection of book.s")

Examples:

1. He went to the library to study.
2. The library has a large collection of books.
3. The library was open late.
4. She works at the library.
5. The library has a new computer lab.