Reference meaning
Union of Soviet Socialist Republics
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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
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This definition is reproduced from Princeton WordNet 3.0, sense 09003284-n, under the WordNet 3.0 License. It has not yet received VocabularyBase editorial review. Read the source and license details.