The Collaborative International Dictionary of English v.0.48:

Bibliophile \Bib"li*o*phile\, n. [Gr. ? book + ? to love: cf. F.
   bibliophile.]
   A lover of books.
   [1913 Webster]

WordNet (r) 3.0 (2006):

bibliophile
    n 1: someone who loves (and usually collects) books [syn:
         bibliophile, booklover, book lover]

Moby Thesaurus II by Grady Ward, 1.0:

53 Moby Thesaurus words for "bibliophile":
   bibliognost, bibliographer, biblioklept, bibliolater,
   bibliolatrist, bibliomane, bibliomaniac, bibliopegist, bibliophage,
   bibliophilist, bibliopole, bibliopolist, bibliotaph, bibliothec,
   bibliothecaire, bibliothecary, book agent, book collector,
   book printer, book publisher, book salesman, book-stealer,
   bookbinder, bookdealer, booklover, bookmaker, bookman, bookseller,
   bookworm, cataloger, chief librarian, college editor, copy editor,
   curator, dictionary editor, editor, editor-in-chief,
   executive editor, greasy grind, grind, juvenile editor, librarian,
   library director, managing editor, permissions editor,
   philobiblist, printer, production editor, publisher,
   reference editor, reference librarian, textbook editor,
   trade editor