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(minuscule: ) is a letter of the Latin alphabet, formed from S with the addition of a vertical line below it. It is used in Yoruba to represent a voiceless postalveolar fricative (IPA: /ʃ/; like English "sh").

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.

[edit] Computer encoding

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

Appearance Code points Names
U+0053, U+0329 LATIN CAPITAL LETTER S + COMBINING VERTICAL LINE BELOW
LATIN CAPITAL LETTER S WITH VERTICAL LINE BELOW
U+0073, U+0329 LATIN SMALL LETTER S + COMBINING VERTICAL LINE BELOW
LATIN SMALL LETTER S WITH VERTICAL LINE BELOW
The ISO basic Latin alphabet
Aa Bb Cc Dd Ee Ff Gg Hh Ii Jj Kk Ll Mm Nn Oo Pp Qq Rr Ss Tt Uu Vv Ww Xx Yy Zz
historypalaeographyderivationsdiacriticspunctuationnumeralsUnicodelist of letters