noun (n)

• a room where books are kept(noun.artifact)

  Example:
  They had brandy in the library.
  

  source: wordnet30
• a collection of literary documents or records kept for reference or borrowing(noun.group)

  source: wordnet30
• a depository built to contain books and other materials for reading and study(noun.artifact)

  Synonym:
  depository library
  

  source: wordnet30
• (computing) a collection of standard programs and subroutines that are stored and available for immediate use(noun.group)

  Synonym:
  program library, subroutine library
  

  source: wordnet30
• a building that houses a collection of books and other materials(noun.artifact)

  source: wordnet30
• A considerable collection of books kept for use, and not as merchandise; as, a private library; a public library.(noun)

  source: webster1913