From Chinese 中國 / 中国 (zhōngguó).
(Ulaanbaatar) IPA(key): /ˈt͡ʃʊŋɢaː/
жунгаа • (žungaa) (Mongolian spelling ᠵᠤᠨᠭᠭᠠ (ǰunɣg-a))