Russian

Флаг СССР

Noun

СССР • ‎(SSSR) m inan ‎(indeclinable)

1. initialism of Сою́з Сове́тских Социалисти́ческих Респу́блик ‎(Sojúz Sovétskix Socialistíčeskix Respúblik, “USSR”)

Usage notes

• As it is hard to pronounce, many Russians abbreviated the word to "ССР" [ɛs ɛs ˈɛr], officially also expanded into Сою́з ССР ‎(Sojúz SSR) or more often into Сою́з ‎(Sojúz).

Serbo-Croatian

Initialism

СССР m (Roman spelling: SSSR)

1. Савез Совјетских Социјалистичких Република
2. USSR

Tajik

Etymology

Borrowing from Russian СССР ‎(SSSR).

Initialism

СССР • ‎(SSSR)

1. USSR (Union of Soviet Socialist Republics)