Nuosu language

Nuosu (or Nosu) (Nuosu: ꆈꌠ꒿ Pronunciation: Nuosuhxop), 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 (in Mandarin: Yí yǔ, 彝語/彝语) and, as such, is the only one taught in schools, both in its oral and written forms. It is spoken by two million people and is increasing; 60% are monolingual. Nuosu is the native Nuosu/Yi name for their own language and is not used in Mandarin Chinese; although it may sometimes be spelled out for pronunciation (nuòsū yǔ 诺苏语/諾蘇語), the Chinese characters for nuòsū have no meaning.

The occasional terms 'Black Yi' (Mandarin: hēi Yí 黑彝) and 'White Yi' (bái Yí 白彝) 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.