Argentina
Rioplatense Spanish covers Buenos Aires city, greater Buenos Aires province, and Uruguay, and is defined by voseo (second-person singular 'vos' with unique conjugations: 'vos sabés', 'vos sos', 'vos tenés'), sh-yeísmo (both 'll' and 'y' pronounced as 'sh'), and a melodic Italian-influenced intonation. Buenos Aires draws on lunfardo — a historical urban slang that emerged in the late 19th century from Italian, Spanish, and immigrant communities — whose vocabulary and word-inversion patterns (vesre) persist in modern Buenos Aires speech.