libraries

noun pl. libraries

1. 1. a collection of books, periodicals, musical scores, films, phonograph records, etc., esp. a large, systematically arranged collection for reading or reference
   2. a room or building where such a collection is kept
2. a public or private institution in charge of the care and circulation of such a collection
3. a set or series of books issued in a single format by a publishing house
4. any collection of things that is organized for a particular purpose: a software library