The glyph is not a composition. Its width in East Asian texts is determined by its context. It can be displayed wide or narrow. In bidirectional text it is written from left to right. When changing direction it is not mirrored. The word that U+041E 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:
O (О о; italics: О о) is a letter of the Cyrillic script.
The letter most commonly represents the sound /ɔ/, like the o in "off". In Russian and Serbo-Croatian, it represents the sound /o/.
Representations
System
Representation (click value to copy)
Nº
1054
UTF-8
D0 9E
UTF-16
04 1E
UTF-32
00 00 04 1E
URL-Quoted
%D0%9E
HTML hex reference
О
Wrong windows-1252 Mojibake
О
HTML named entity
О
Encoding: BIG5HKSCS (hex bytes)
C8 43
Encoding: CP855 (hex bytes)
D7
Encoding: CP866 (hex bytes)
8E
Encoding: CP932 (hex bytes)
84 4F
Encoding: CP949 (hex bytes)
AC B0
Encoding: CP1125 (hex bytes)
8E
Encoding: CP1251 (hex bytes)
CE
Encoding: EUC_JP (hex bytes)
A7 B0
Encoding: EUC_JIS_2004 (hex bytes)
A7 B0
Encoding: EUC_JISX0213 (hex bytes)
A7 B0
Encoding: EUC_KR (hex bytes)
AC B0
Encoding: GB2312 (hex bytes)
A7 B0
Encoding: GBK (hex bytes)
A7 B0
Encoding: GB18030 (hex bytes)
A7 B0
Encoding: HZ (hex bytes)
7E 7B 27 30 7E 7D
Encoding: ISO2022_JP (hex bytes)
1B 24 42 27 30 1B 28 42
Encoding: ISO2022_JP_1 (hex bytes)
1B 24 42 27 30 1B 28 42
Encoding: ISO2022_JP_2 (hex bytes)
1B 24 42 27 30 1B 28 42
Encoding: ISO2022_JP_2004 (hex bytes)
1B 24 42 27 30 1B 28 42
Encoding: ISO2022_JP_3 (hex bytes)
1B 24 42 27 30 1B 28 42
Encoding: ISO2022_JP_EXT (hex bytes)
1B 24 42 27 30 1B 28 42
Encoding: ISO2022_KR (hex bytes)
1B 24 29 43 0E 2C 30 0F
Encoding: ISO8859_5 (hex bytes)
BE
Encoding: JOHAB (hex bytes)
DE B0
Encoding: KOI8_R (hex bytes)
EF
Encoding: KOI8_T (hex bytes)
EF
Encoding: KOI8_U (hex bytes)
EF
Encoding: KZ1048 (hex bytes)
CE
Encoding: MAC_CYRILLIC (hex bytes)
8E
Encoding: PTCP154 (hex bytes)
CE
Encoding: SHIFT_JIS (hex bytes)
84 4F
Encoding: SHIFT_JIS_2004 (hex bytes)
84 4F
Encoding: SHIFT_JISX0213 (hex bytes)
84 4F
Encoding: CP1025 (hex bytes)
DB
Encoding: CP1123 (hex bytes)
DB
LATEX
\cyrchar\CYRO
Adobe Glyph List
Ocyrillic
Adobe Glyph List
afii10032
digraph
O=
RFC 5137
\u'041E'
Bash and Zsh inside echo -e
\u041E
C and C++
\u041E
C#
\u041E
CSS
\00041E
Excel
=UNICHAR(1054)
Go
\u041E
JavaScript
\u041E
Modern JavaScript since ES6
\u{41e}
JSON
\u041E
Java
\u041E
Lua
\u{41E}
Matlab
char(1054)
Perl
"\x{41E}"
PHP
\u{41e}
PostgreSQL
U&'\041E'
PowerShell
`u{41E}
Python
\u041E
Ruby
\u{41e}
Rust
\u{41e}
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