unicode

U+3309

SQUARE ONSU

SQUARE ONSU · Other Symbol · CJK Compatibility · Katakana script

Practice lab

Train Katakana starting with

Free interactive drills for reading and writing the full katakana set — on jepang.org

Katakana practice drills

Quick facts

Code point
U+3309
Decimal
13065
Name
SQUARE ONSU
General category
SoOther Symbol
Script
Katakana
Bidi class
L
Combining class
0
Age
1.1
Name aliases

Normalization & case

Decomposition
<square> 30AA 30F3 30B9
Uppercase
Lowercase
Titlecase
Case folding
Bidi mirrored
No

Layout & width

East Asian Width
W
Line Break
ID
Numeric
Script extensions

Developer examples

JS
'\u{3309}' // U+3309
Python
"\N{SQUARE ONSU}"
HTML
&#x3309;

Encodings & escapes

UTF-8
UTF-16
UTF-32
HTML decimal
HTML hex
JavaScript
Python
CSS
JSON
URL (UTF-8)
C / C++

Related

Source

Unicode
16.0.0
WHATWG