This character is a Other Letter and is mainly used in the Arabic script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written as Arabic letter from right to left. When changing direction it is not mirrored. The word that U+0633 forms with similar adjacent characters prevents a line break inside it. The glyph can be confused with 87 other glyphs.
The Wikipedia has the following information about this codepoint:
Samekh is the fifteenth letter of the Semitic abjads, including Phoenician sāmek 𐤎, Hebrew sāmeḵס, Aramaic samek 𐡎, Syriac semkaṯ ܣ, and Mashriqi Arabic sīn س.
Samekh represents a voiceless alveolar fricative /s/. In the Hebrew language, the samekh has the same pronunciation as the left-dotted shin.
The numerical value of samekh is 60.
Representations
System
Representation (click value to copy)
Nº
1587
UTF-8
D8 B3
UTF-16
06 33
UTF-32
00 00 06 33
URL-Quoted
%D8%B3
HTML hex reference
س
Wrong windows-1252 Mojibake
س
Encoding: CP720 (hex bytes)
AB
Encoding: CP1256 (hex bytes)
D3
Encoding: GB18030 (hex bytes)
81 31 85 31
Encoding: ISO8859_6 (hex bytes)
D3
Encoding: CP420 (hex bytes)
77
Adobe Glyph List
afii57427
Adobe Glyph List
seenarabic
digraph
s+
RFC 5137
\u'0633'
Bash and Zsh inside echo -e
\u0633
C and C++
\u0633
C#
\u0633
CSS
\000633
Excel
=UNICHAR(1587)
Go
\u0633
JavaScript
\u0633
Modern JavaScript since ES6
\u{633}
JSON
\u0633
Java
\u0633
Lua
\u{633}
Matlab
char(1587)
Perl
"\x{633}"
PHP
\u{633}
PostgreSQL
U&'\0633'
PowerShell
`u{633}
Python
\u0633
Ruby
\u{633}
Rust
\u{633}
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