1. n. An institution which holds books and/or other forms of stored information for use by the public or qualified people. It is usual, but not a defining feature of a library, for it to be housed in rooms
2. n. A collection of books or other forms of stored information.
3. n. An equivalent collection of analogous information in a non-printed form, e.g. record library.
4. n. (computer science) A collection of software subprograms that provides functionality, to be incorporated into or used by a computer program.
5. n. A collection of DNA material from a single organism or relative to a single disease.
