from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. The name for a constitutionally socialist state in Eurasia that existed from 1922 to 1991.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a former communist country in eastern Europe and northern Asia; established in 1922; included Russia and 14 other soviet socialist republics (Ukraine and Byelorussia and others); officially dissolved 31 December 1991
Short form of Union of Soviet Socialist Republics (Wiktionary)