This character is a Other Letter and is mainly used in the Runic script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written from left to right. When changing direction it is not mirrored. The word that U+16B8 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
Gyfu is the name for the g-rune ᚷ in the Anglo-Saxon rune poem, meaning 'gift' or 'generosity':
The corresponding letter of the Gothic alphabet is 𐌲 g, called giba. The same rune also appears in the Elder Futhark, with a suggested Proto-Germanic name *gebô 'gift'. J. H. Looijenga speculates that the rune is directly derived from Latin Χ, the pronunciation of which may have been similar to Germanic g in the 1st century, e.g., Gothic *reihs compared to Latin rex (as opposed to the Etruscan alphabet, where /𐌗 had a value of [s]).
The gyfu rune is sometimes used as a symbol within modern mysticism, particularly amongst those interested in Celtic mythology. It's described, for example, in the book The Runic Tarot as a representation of the giving-receiving balance in friendships.
Representations
System
Representation (click value to copy)
Nº
5816
UTF-8
E1 9A B8
UTF-16
16 B8
UTF-32
00 00 16 B8
URL-Quoted
%E1%9A%B8
HTML hex reference
ᚸ
Wrong windows-1252 Mojibake
ᚸ
Encoding: GB18030 (hex bytes)
81 34 B2 30
RFC 5137
\u'16B8'
Bash and Zsh inside echo -e
\u16B8
C and C++
\u16B8
C#
\u16B8
CSS
\0016B8
Excel
=UNICHAR(5816)
Go
\u16B8
JavaScript
\u16B8
Modern JavaScript since ES6
\u{16b8}
JSON
\u16B8
Java
\u16B8
Lua
\u{16B8}
Matlab
char(5816)
Perl
"\x{16B8}"
PHP
\u{16b8}
PostgreSQL
U&'\16B8'
PowerShell
`u{16B8}
Python
\u16B8
Ruby
\u{16b8}
Rust
\u{16b8}
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