Halfwidth Hangul Letter Sios

It is a halfwidth compatibility form of the Korean consonant ㅅ. It represents the same consonant in a legacy encoding context; it is not a complete Korean syllable. Unicode maps it to ㅅ and relates it to the conjoining initial ᄉ.

Its history runs through Korean character-set standards. The 1974 edition of KS C 5601 defined N-byte Hangul, a variable-length 7-bit set of basic jamo. The later standards trail includes the 1987 and later KS C 5601 / KS X 1001 line; the 1992 edition placed older N-byte material in Annex 4. In 2017, a Unicode proposal discussed uncertain attribution and a similar Xerox set.

Halfwidth forms helped older mixed-width systems keep single-byte text and wider character sets aligned and support conversion between encodings. Modern Korean text normally uses compatibility jamo or precomposed syllables; this form preserves compatibility with older data.

How do I type ﾵ?

Use a Unicode picker; Korean keyboards usually do not offer it. Korean input methods target ordinary compatibility jamo and precomposed syllables. A 2017 Unicode proposal reported that they did not provide a way to enter halfwidth jamo, so an editor’s Unicode-character command is the practical route.

If it appears as a box, the font may lack the glyph. A 2017 Unicode proposal noted that most Korean fonts did not cover halfwidth jamo; the text can still contain the correct character.

Is ﾵ the same as ㅅ?

It represents ㅅ, but it is a distinct encoded form. The ordinary ㅅ is a standalone compatibility jamo used in Korean text. The related ᄉ is the initial jamo used when Hangul syllables are composed.

Halfwidth jamo are separate from modern syllable composition. Normalization can map ﾵ toward ㅅ, so software handling Korean text may change its width or how it interacts with neighboring jamo.