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+06C9 forms with similar adjacent characters prevents a line break inside it. The glyph can be confused with one other glyph.
The Wikipedia has the following information about this codepoint:
Waw (wāw "hook") is the sixth letter of the Semitic abjads, including
Phoenician wāw 𐤅,
Aramaic waw 𐡅,
Hebrew vavו,
Syriac waw ܘ
and Arabic wāwو (sixth in abjadi order; 27th in modern Arabic order).
It represents the consonant [w] in classical Hebrew, and [v] in modern Hebrew, as well as the vowels [u] and [o]. In text with niqqud, a dot is added to the left or on top of the letter to indicate, respectively, the two vowel pronunciations.
It is the origin of Greek Ϝ (digamma) and Υ (upsilon), Cyrillic У and V, Latin F and V and later Y, and the derived Latin- or Roman-alphabet letters U and W.
Representations
System
Representation (click value to copy)
Nº
1737
UTF-8
DB 89
UTF-16
06 C9
UTF-32
00 00 06 C9
URL-Quoted
%DB%89
HTML hex reference
ۉ
Wrong windows-1252 Mojibake
Û‰
Encoding: GB18030 (hex bytes)
81 31 94 31
RFC 5137
\u'06C9'
Bash and Zsh inside echo -e
\u06C9
C and C++
\u06C9
C#
\u06C9
CSS
\0006C9
Excel
=UNICHAR(1737)
Go
\u06C9
JavaScript
\u06C9
Modern JavaScript since ES6
\u{6c9}
JSON
\u06C9
Java
\u06C9
Lua
\u{6C9}
Matlab
char(1737)
Perl
"\x{6C9}"
PHP
\u{6c9}
PostgreSQL
U&'\06C9'
PowerShell
`u{6C9}
Python
\u06C9
Ruby
\u{6c9}
Rust
\u{6c9}
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