Ṣ
Letter of the Latin alphabet
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Ṣ (minuscule: ṣ) is a letter of the Latin alphabet, formed from an S with the addition of a dot below the letter.[1]

Usage
The uses of Ṣ include:
- the romanization of Semitic languages to represent an "emphatic s" /sˤ/, such as the Arabic ص (ṣād) or sometimes the Hebrew צ (tzadi) as pronounced by Mizrahi Jews;
- the romanization of Indic languages to represent retroflex /ʂ/;
- the orthography of Yoruba in Nigeria to represent the voiceless palato-alveolar sibilant /ʃ/ (the English "sh" sound);
- the Alvarez-Hale orthography of the Tohono Oʼodham language for retroflex /ʂ/ (Akimel O'odham and Saxton use ⟨sh⟩ instead).
Encoding
In HTML, these are Ṣ: Ṣ and ṣ: ṣ. The Unicode codepoints are U+1E62 for Ṣ and U+1E63 for ṣ in Latin Extended Additional range.