U+3099 "゙" Combining Katakana-Hiragana Voiced Sound Mark Unicode Character

U+3099 "゙" Combining Katakana-Hiragana Voiced Sound Mark is a diacritical mark used in the Japanese writing system to indicate that a preceding kana character, whether hiragana or katakana, should be pronounced with a voiced sound, such as turning "ka" into "ga" or "sa" into "za". Unlike the standalone voiced sound mark (dakuten), which is typically written as two small strokes, this combining version is designed to be applied directly above or adjacent to a base character through character encoding, allowing for more precise digital text representation and rendering. It is part of the Unicode standard's combining diacritical marks block and is essential for accurately displaying Japanese text in digital formats where proper phonemic voicing must be indicated.

General Properties

Code Point	U+3099
Version Added	1.1
Name	Combining Katakana-Hiragana Voiced Sound Mark
Unicode 1.0 Name	Non-Spacing Katakana-Hiragana Voiced Sound Mark
Block	Hiragana
General Category	Nonspacing Mark
Canonical Combining Class	Kana Voicing
Bidirectional Class	Nonspacing Mark

Encodings

HTML Decimal Encoding	゙
HTML Hex Encoding	゙
UTF-8 Encoding	0xE3 0x82 0x99
UTF-16 Encoding	0x3099
UTF-32 Encoding	0x00003099
C/C++/Java Escape	\u3099

Unicode Properties

NFC Quick Check	Maybe
NFD Quick Check	Yes
NFKC Quick Check	Maybe
NFKD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Joining Type	Transparent
Line Break	Combining Mark
East Asian Width	Wide
Case Ignorable	Yes
Script	Inherited
Script Extensions	Hiragana Katakana
Indic Syllabic Category	Other
Indic Conjunct Break	Extend
ID Continue	Yes
XID Continue	Yes
Diacritic	Yes
Vertical Orientation	Upright
Grapheme Extend	Yes
Grapheme Cluster Break	Extend
Word Break	Extend
Sentence Break	Extend