noun
- 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.
- synonyms: Soviet Union, Russia, Union of Soviet Socialist Republics
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). USSR. Retrieved September 22, 2026, from http://smartdefine.org/ussr/definitions/1318649 |
| Chicago | WordNet. 2010. "USSR" http://smartdefine.org/ussr/definitions/1318649 (accessed September 22, 2026). |
| Harvard | WordNet 2010, USSR, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/ussr/definitions/1318649>. |
| MLA | WordNet. "USSR" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/ussr/definitions/1318649> |