Sa (Mongolic)
Sa is a letter of related and vertically oriented alphabets used to write Mongolic and Tungusic languages. Mongolian language 

 Transcribes Chakhar , or  before ; Khalkha , or  before . Before a morpheme boundary, however, there is no change of  to /ʃ/ before an . Transliterated into Cyrillic with the letter . Derived from Old Uyghur merged samekh and shin ( and ). Produced with  using the Windows Mongolian keyboard layout. In the Mongolian Unicode block,  comes after  and before . Clear Script

Xibe language

Manchu language

Notes

References 

Articles containing Mongolian script text
Mongolic letters
Mongolic languages
Tungusic languages