(1):
(n.) A book containing the sacred writings belonging to any religion; as, the Koran is often called the Mohammedan Bible.
(2):
(n.) A book.
(3):
(n.) A book with an authoritative exposition of some topic, respected by many who are experts in the field.
(4):
(n.) The Book by way of eminence, - that is, the book which is made up of the writings accepted by Christians as of divine origin and authority, whether such writings be in the original language, or translated; the Scriptures of the Old and New Testaments; - sometimes in a restricted sense, the Old Testament; as, King James's Bible; Douay Bible; Luther's Bible. Also, the book which is made up of writings similarly accepted by the Jews; as, a rabbinical Bible.