RSFSR
/ɑɹ.ɛs.ɛf.ɛsˈɑɹ/, /ɑː.ɛs.ɛf.ɛsˈɑː/
pronoun
Initialism of Russian Soviet Federative Socialist Republic.
RSFSR
r rotunda, rs rotunda
/ˌɑɹ.ɹoʊˈtʌn.də/, /ˌɑː.ɹəʊˈtʌn.də/
noun
(typography) A curved form of the letter r, found in some medieval and fraktur scripts: ⟨ ꝛ ⟩.
okrouhlé r