This character is a Currency Symbol and is commonly used, that is, in no specific script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written as end of a European number, e.g., a currency symbol, from left to right. When changing direction it is not mirrored. U+20BD prohibits a line break after it, if it is followed by a number. The glyph can be confused with one other glyph.
The CLDR project calls this character “ruble” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: currency.
The Wikipedia has the following information about this codepoint:
The ruble sign, ₽, is the currency sign used for the Russian ruble, the official currency of Russia. Its form is a Cyrillic letter Р with an additional horizontal stroke. The design was approved on 11 December 2013 after a public poll that took place a month earlier.
In Russian orthography, the sign almost always follows the number (the monetary value), and in many cases there is a space between the two. In English orthography, it usually precedes the number.
Representations
System
Representation (click value to copy)
Nº
8381
UTF-8
E2 82 BD
UTF-16
20 BD
UTF-32
00 00 20 BD
URL-Quoted
%E2%82%BD
HTML hex reference
₽
Wrong windows-1252 Mojibake
₽
Encoding: GB18030 (hex bytes)
81 36 B4 38
AGL: Latin-3
uni20BD
AGL: Latin-4
uni20BD
AGL: Latin-5
uni20BD
RFC 5137
\u'20BD'
Bash and Zsh inside echo -e
\u20BD
C and C++
\u20BD
C#
\u20BD
CSS
\0020BD
Excel
=UNICHAR(8381)
Go
\u20BD
JavaScript
\u20BD
Modern JavaScript since ES6
\u{20bd}
JSON
\u20BD
Java
\u20BD
Lua
\u{20BD}
Matlab
char(8381)
Perl
"\x{20BD}"
PHP
\u{20bd}
PostgreSQL
U&'\20BD'
PowerShell
`u{20BD}
Python
\u20BD
Ruby
\u{20bd}
Rust
\u{20bd}
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