From Longman Dictionary of Contemporary Englishbiblebi‧ble, Bible /ˈbaɪbəl/ noun 1 → the Bible2 [countable] a copy of the bible3 [singular] informal the most useful and important book on a particular subject It's the anatomy student's bible!Origin bible (1300-1400) Old French Medieval Latin biblia, from Greek, plural of biblion “book”, from byblos “papyrus” (from which paper was made)