ソ連邦れんぽうソれんぽうFreq.FrequencyTop 100,000じ字FuriganaMeanings1nounSoviet Union; USSRabbreviationhistorical termAbbreviation of ソビエト連邦. Historical term for the former Soviet Union.See also: ソビエト連邦ソ連邦れんぽう
