This character is a Other Punctuation and is commonly used, that is, in no specific script. It is also used in the scripts Bopomofo, Hangul, Han, Hiragana, Katakana.
The glyph is not a composition. Its East Asian Width is wide. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. U+FE46 offers a line break opportunity at its position, except in some numeric contexts.
The Wikipedia has the following information about this codepoint:
The emphasis mark, emphasis dot, kenten (圏点) or boten (圏点, bōten) is a typographic mark used in some East Asian languages to indicate emphasis. The markings can take many forms, such as dots or bullets, circles, or triangles. They were more commonly used historically, but with the rise of modern technology, it is now common to use quotation marks or change the font style.
Representations
System
Representation (click value to copy)
Nº
65094
UTF-8
EF B9 86
UTF-16
FE 46
UTF-32
00 00 FE 46
URL-Quoted
%EF%B9%86
HTML hex reference
﹆
Wrong windows-1252 Mojibake
﹆
Encoding: EUC_JIS_2004 (hex bytes)
A3 BD
Encoding: EUC_JISX0213 (hex bytes)
A3 BD
Encoding: GB18030 (hex bytes)
84 31 86 30
Encoding: ISO2022_JP_2004 (hex bytes)
1B 24 28 51 23 3D 1B 28 42
Encoding: ISO2022_JP_3 (hex bytes)
1B 24 28 4F 23 3D 1B 28 42
Encoding: SHIFT_JIS_2004 (hex bytes)
82 5C
Encoding: SHIFT_JISX0213 (hex bytes)
82 5C
RFC 5137
\u'FE46'
Bash and Zsh inside echo -e
\uFE46
C and C++
\uFE46
C#
\uFE46
CSS
\00FE46
Excel
=UNICHAR(65094)
Go
\uFE46
JavaScript
\uFE46
Modern JavaScript since ES6
\u{fe46}
JSON
\uFE46
Java
\uFE46
Lua
\u{FE46}
Matlab
char(65094)
Perl
"\x{FE46}"
PHP
\u{fe46}
PostgreSQL
U&'\FE46'
PowerShell
`u{FE46}
Python
\uFE46
Ruby
\u{fe46}
Rust
\u{fe46}
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