Breadcrumb Home > Dictionary > Index B Blue Nile: Meaning and Definition of Find definitions for: Blue' Nile' Pronunciation: [key] a river in E Africa, flowing NNW from Lake Tana in Ethiopia into the Nile at Khartoum: a tributary of the Nile. ab. 950 mi. (1530 km) long. Cf. Nile. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. blueness blue norther TrendingHere are the facts and trivia that people are buzzing about. Biographies: Notable Jewish Religious Leaders Current Events This Week: September 2023 Hispanic Population and the 2010 U.S. Census Preamble of the United Nations Charter The Jewish Calendar ✖ Related Content Daily Word Quiz: radula Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language