| Noun | 1. | Danube River - the 2nd longest European river; flows into the Black SeaCzechoslovakia - a former republic in central Europe; divided into Czech Republic and Slovakia in 1993 Austria, Oesterreich, Republic of Austria - a mountainous republic in central Europe; under the Habsburgs (1278-1918) Austria maintained control of the Holy Roman Empire and was a leader in European politics until the 19th century 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" | |