This character is a Other Letter and is mainly used in the Hangul script. The character is also known as S.
The glyph is not a composition. Its East Asian Width is wide. In bidirectional text it is written from left to right. When changing direction it is not mirrored. U+1109 forms a Korean syllable block with similar characters, which prevents a line break inside it. The glyph can be confused with 78 other glyphs.
The Wikipedia has the following information about this codepoint:
Siot (character: ㅅ; Korean: 시옷, siot, North Korean: 시읏, sieut) is a consonant of the Korean alphabet. Siot indicates an [s] sound like in the English word "staff", but at the end of a syllable it denotes a [t] sound. Before [i], semivowels (like ㅛ, yo) and the vowel ㅟ (wi) it is pronounced [ɕ].
Representations
System
Representation (click value to copy)
Nº
4361
UTF-8
E1 84 89
UTF-16
11 09
UTF-32
00 00 11 09
URL-Quoted
%E1%84%89
HTML hex reference
ᄉ
Wrong windows-1252 Mojibake
ᄉ
alias
S
Encoding: GB18030 (hex bytes)
81 33 9E 35
RFC 5137
\u'1109'
Bash and Zsh inside echo -e
\u1109
C and C++
\u1109
C#
\u1109
CSS
\001109
Excel
=UNICHAR(4361)
Go
\u1109
JavaScript
\u1109
Modern JavaScript since ES6
\u{1109}
JSON
\u1109
Java
\u1109
Lua
\u{1109}
Matlab
char(4361)
Perl
"\x{1109}"
PHP
\u{1109}
PostgreSQL
U&'\1109'
PowerShell
`u{1109}
Python
\u1109
Ruby
\u{1109}
Rust
\u{1109}
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