Sichuan Yi language

Sichuan Yi language
Nuosu or Nosu (, transcribed as Nuo su hxop), also known as Northern Yi, Liangshan Yi, and Sichuan Yi, is the prestige language of the Yi people; it has been chosen by the Chinese government as the standard Yi language and, as such, is the only one taught in schools, both in its oral and written forms. It was spoken by two million people and was increasing as of (PRC census); 60% were monolingual (1994 estimate). Nuosu is the native Nuosu name for their own language and is not used in Mandarin Chinese, though it may sometimes be translated as Nuòsūyǔ.

The occasional terms "Black Yi" and 'White Yi' are castes of the Nuosu people, not dialects.

Nuosu is one of several often mutually unintelligible varieties known as Yi, Lolo, Moso, or Noso; the six Yi languages recognized by the Chinese government hold only 25% to 50% of their vocabulary in common. They share a common traditional writing system, though this is used for shamanism rather than daily accounting.