This character is a Other Symbol and is commonly used, that is, in no specific script.
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+1F9D0 offers a line break opportunity at its position, except in some numeric contexts.
The CLDR project calls this character “face with monocle” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: classy, face, fancy, monocle, rich, stuffy, wealthy.
This character is designated as an emoji. It will be rendered as colorful emoji on conforming platforms. To reduce it to a monochrome character, you can combine it with Variation Selector-15: 🧐︎ See the Emojipedia for more details on this character’s emoji properties.
The Wikipedia has the following information about this codepoint:
A monocle is a type of corrective lens used to correct or enhance the visual perception in only one eye. It consists of a circular lens placed in front of the eye and held in place by the eye socket itself. Often, to avoid losing the monocle, a string or wire is connected to the wearer's clothing at one end and, at the other end, to either a hole in the lens or, more often, a wire ring around its circumference.
Representations
System
Representation (click value to copy)
Nº
129488
UTF-8
F0 9F A7 90
UTF-16
D8 3E DD D0
UTF-32
00 01 F9 D0
URL-Quoted
%F0%9F%A7%90
HTML hex reference
🧐
Wrong windows-1252 Mojibake
ðŸ§
Encoding: GB18030 (hex bytes)
95 30 E0 32
RFC 5137
\u'1F9D0'
Bash and Zsh inside echo -e
\U0001F9D0
C and C++
\U0001F9D0
C#
\U0001F9D0
CSS
\01F9D0
Excel
=UNICHAR(129488)
Go
\U0001F9D0
JavaScript
\uD83E\uDDD0
Modern JavaScript since ES6
\u{1f9d0}
JSON
\uD83E\uDDD0
Java
\uD83E\uDDD0
Lua
\u{1F9D0}
Matlab
char(129488)
Perl
"\x{1F9D0}"
PHP
\u{1f9d0}
PostgreSQL
U&'\+01F9D0'
PowerShell
`u{1F9D0}
Python
\U0001F9D0
Ruby
\u{1f9d0}
Rust
\u{1f9d0}
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