/ Dictionary / Index D Dnieper: Meaning and Definition of Find definitions for: Dnie•per Pronunciation: (nē'pur Russ. dnyepr), [key] — n. a river rising in the W Russian Federation flowing S through Byelorussia (Belarus) and Ukraine to the Black Sea. 1400 mi. (2250 km) long. Russian, Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dnieper (Thesaurus) Dnestr Dniester Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language