/ ˈlaɪbrəri; ˈlaɪbri; NAmE -breri/ noun ( pl. -ies )
1.
a building in which collections of books, CDs, newspapers, etc. are kept for people to read, study or borrow :
a public / reference / university, etc. library
a library book
a toy library (= for borrowing toys from)
2.
a room in a large house where most of the books are kept
3.
( formal ) a personal collection of books, CDs, etc. :
a new edition to add to your library
4.
a series of books, recordings, etc. produced by the same company and similar in appearance :
a library of children's classics
••
WORD ORIGIN
late Middle English : via Old French from Latin libraria bookshop, feminine (used as a noun) of librarius relating to books, from liber , libr- book.