- Soviet Union, Russia, Union of Soviet Socialist Republics, USSR - a former communist country in eastern Europe and northern Asia; established in 1922; included Russia and 14 other soviet socialist republics (Ukraine and Byelorussia an others); officially dissolved 31 December 1991
--1 is a kind of country, state, land
--1 is a part of Eurasia
--1 has parts:Soviet Socialist Republic; Soviet Russia, Russia, Russian Soviet Federated Socialist Republic; Caspian, Caspian Sea