| Noun | 1. | Dnieper - a river that rises in Russia near Smolensk and flowing south through Belarus and Ukraine to empty into the Black SeaRussian Federation, Russia - a federation in northeastern Europe and northern Asia; formerly Soviet Russia; since 1991 an independent state Ukraine, Ukrayina - a republic in southeastern Europe; formerly a European soviet; the center of the original Russian state which came into existence in the ninth century river - a large natural stream of water (larger than a creek); "the river was navigable for 50 miles" | |