UNION OF SOVIET SOCIALIST REPUBLICS
Meaning of UNION OF SOVIET SOCIALIST REPUBLICS in English
ˌUnion of ˌSoviet ˌSocialist Reˈpublics, the BrE AmE
the full name of the ↑ Soviet Union
Longman Dictionary of Contemporary English.
Longman - Словарь современного английского языка.
2012