U+179F "ស" Khmer Letter Sa Unicode Character

U+179F "ស" Khmer Letter Sa is the thirty-eighth consonant of the Khmer script, representing the voiceless alveolar fricative sound /s/ in the Khmer language. In the traditional ordering of the Khmer alphabet, it belongs to the "s" group of consonants and is classified as an unvoiced, aspirated sound, though in modern pronunciation it is typically unaspirated. This letter appears in many common Khmer words and is also used in Pali and Sanskrit loanwords within Buddhist and literary contexts, where it often carries the inherent vowel /ɑː/ unless modified by a diacritic or subscript consonant. The character is visually distinctive, featuring a curved top stroke and a straight vertical line, and it plays a fundamental role in both writing and typographic representations of the Khmer language.