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S̩
S̩ s̩
Usage
Writing system	Latin
Type	alphabetic
Language of origin	Yoruba, International Phonetic Alphabet
Sound values	[ʃ], [s̩]
History
Development	Σ σ ς ς 𐌔 S S s ſ S̩ s̩
Other
This article contains phonetic transcriptions in the International Phonetic Alphabet (IPA). For an introductory guide on IPA symbols, see Help:IPA. For the distinction between [ ], / / and ⟨ ⟩, see IPA § Brackets and transcription delimiters.

S̩ (minuscule: s̩) is a letter of the Latin alphabet, formed from S with the addition of a vertical line below it. It is used in Yoruba when written in Nigeria to represent the sound [ʃ] (like English "sh").^[1]

The line is sometimes replaced by a dot, i.e. Ṣ ṣ.

[s̩] is also the International Phonetic Alphabet symbol for a syllabic "s" sound.

Unicode does not include precomposed characters for S̩ s̩ — they should be represented with a combining character, which may not align properly or may display as squares in some fonts. Nevertheless, the sequence of base character + combining diacritic is given a unique name. In Unicode:

• S̩: U+0053 S LATIN CAPITAL LETTER S + U+0329 ̩ COMBINING VERTICAL LINE BELOW
• s̩: U+0073 s LATIN SMALL LETTER S + U+0329 ̩ COMBINING VERTICAL LINE BELOW