This character is a Math Symbol and is commonly used, that is, in no specific script. The character is also known as varies with (proportional to), difference between, similar to, not, cycle and APL tilde.
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 acts as Other Neutral. When changing direction it is mirrored into Glyph for U+223DReversed Tilde. If its East Asian Width is “narrow”, U+223C forms a word with similar characters, which prevents a line break inside it. Otherwise it allows line breaks around it, except in some numeric contexts. The glyph can be confused with one other glyph.
The CLDR project calls this character “tilde operator” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: operator, tilde.
The Wikipedia has the following information about this codepoint:
The tilde (, also ) is a grapheme ⟨˜⟩ or ⟨~⟩ with a number of uses. The name of the character came into English from Spanish tilde, which in turn came from the Latin titulus, meaning 'title' or 'superscription'. Its primary use is as a diacritic (accent) in combination with a base letter. Its freestanding form is used in modern texts mainly to indicate approximation.
Representations
System
Representation (click value to copy)
Nº
8764
UTF-8
E2 88 BC
UTF-16
22 3C
UTF-32
00 00 22 3C
URL-Quoted
%E2%88%BC
HTML hex reference
∼
Wrong windows-1252 Mojibake
∼
HTML named entity
∼
HTML named entity
∼
HTML named entity
∼
HTML named entity
∼
alias
varies with (proportional to)
alias
difference between
alias
similar to
alias
not
alias
cycle
alias
APL tilde
Encoding: BIG5 (hex bytes)
A1 E3
Encoding: BIG5HKSCS (hex bytes)
A1 E3
Encoding: CP949 (hex bytes)
A1 AD
Encoding: CP950 (hex bytes)
A1 E3
Encoding: EUC_KR (hex bytes)
A1 AD
Encoding: GB18030 (hex bytes)
81 36 D5 35
Encoding: ISO2022_JP_2 (hex bytes)
1B 24 28 43 21 2D 1B 28 42
Encoding: ISO2022_KR (hex bytes)
1B 24 29 43 0E 21 2D 0F
Encoding: JOHAB (hex bytes)
D9 3D
LATEX
\sim
Adobe Glyph List
similar
Adobe Glyph List
tildeoperator
digraph
?1
RFC 5137
\u'223C'
Bash and Zsh inside echo -e
\u223C
C and C++
\u223C
C#
\u223C
CSS
\00223C
Excel
=UNICHAR(8764)
Go
\u223C
JavaScript
\u223C
Modern JavaScript since ES6
\u{223c}
JSON
\u223C
Java
\u223C
Lua
\u{223C}
Matlab
char(8764)
Perl
"\x{223C}"
PHP
\u{223c}
PostgreSQL
U&'\223C'
PowerShell
`u{223C}
Python
\u223C
Ruby
\u{223c}
Rust
\u{223c}
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