U+FF9E "ﾞ" Halfwidth Katakana Voiced Sound Mark Unicode Character

U+FF9E "ﾞ" Halfwidth Katakana Voiced Sound Mark is a typographic symbol used in Japanese writing to indicate that the preceding katakana character should be pronounced with a voiced sound, such as turning an unvoiced "ka" into a voiced "ga". It is specifically designed for halfwidth katakana characters, which are narrower in width than their fullwidth counterparts and are often used in older computer systems or for limited character display spaces like terminal screens or certain digital text formats. This combining mark is placed after the base character in digital text, functioning similarly to its fullwidth counterpart but occupying only half the width to maintain alignment in monospaced or constrained environments.

General Properties

Code Point	U+FF9E
Version Added	1.1
Name	Halfwidth Katakana Voiced Sound Mark
Block	Halfwidth and Fullwidth Forms
General Category	Modifier Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Narrow
Decomposition Mapping	"゙" U+3099 Combining Katakana-Hiragana Voiced Sound Mark

Encodings

HTML Decimal Encoding	ﾞ
HTML Hex Encoding	ﾞ
UTF-8 Encoding	0xEF 0xBE 0x9E
UTF-16 Encoding	0xFF9E
UTF-32 Encoding	0x0000FF9E
C/C++/Java Escape	\uff9e

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Nonstarter
East Asian Width	Halfwidth
Case Ignorable	Yes
Changes When NFKC Casefolded	Yes
NFKC Casefold	"゙" U+3099 Combining Katakana-Hiragana Voiced Sound Mark
NFKC Simple Casefold	"゙" U+3099 Combining Katakana-Hiragana Voiced Sound Mark
Script	Common
Script Extensions	Hiragana Katakana
Indic Syllabic Category	Other
Indic Conjunct Break	Extend
ID Start	Yes
ID Continue	Yes
XID Continue	Yes
Diacritic	Yes
Alphabetic	Yes
Vertical Orientation	Rotated
Grapheme Extend	Yes
Other Grapheme Extend	Yes
Grapheme Cluster Break	Extend
Word Break	Extend
Sentence Break	Extend