U+309B "゛" Katakana-Hiragana Voiced Sound Mark Unicode Character
Unicode Version 17.0
゛
U+309B "゛" Katakana-Hiragana Voiced Sound Mark is a combining diacritical mark used in the Japanese writing system to indicate that a preceding kana character should be pronounced with a voiced consonant, transforming sounds like "ka" into "ga" or "sa" into "za." It is visually identical to the dakuten, a pair of small strokes resembling quotation marks, and is applied to both hiragana and katakana characters. This mark is distinct from the similar-looking handakuten (U+309C), which instead denotes a semi-voiced sound, such as changing "ha" to "pa."
General Properties
| Code Point | U+309B |
| Version Added | 1.1 |
| Name | Katakana-Hiragana Voiced Sound Mark |
| Block | Hiragana |
| General Category | Modifier Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Other Neutral |
| Decomposition Type | Compat |
| Decomposition Mapping | "SP" U+0020 Space "゙" U+3099 Combining Katakana-Hiragana Voiced Sound Mark |
Encodings
| HTML Decimal Encoding | ゛ |
| HTML Hex Encoding | ゛ |
| UTF-8 Encoding | 0xE3 0x82 0x9B |
| UTF-16 Encoding | 0x309B |
| UTF-32 Encoding | 0x0000309B |
| C/C++/Java Escape | \u309b |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Nonstarter |
| East Asian Width | Wide |
| Case Ignorable | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "SP" U+0020 Space "゙" U+3099 Combining Katakana-Hiragana Voiced Sound Mark |
| NFKC Simple Casefold | "SP" U+0020 Space "゙" U+3099 Combining Katakana-Hiragana Voiced Sound Mark |
| Script | Common |
| Script Extensions | Hiragana Katakana |
| Indic Syllabic Category | Other |
| ID Start | Yes |
| Other ID Start | Yes |
| ID Continue | Yes |
| Diacritic | Yes |
| Vertical Orientation | Transformed Upright |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Katakana |
| Sentence Break | Other |