U+FFE3 "￣" Fullwidth Macron Unicode Character

U+FFE3 "￣" Fullwidth Macron is a typographic symbol that represents a horizontal line placed above a character, known as a macron, but rendered in a fullwidth form to occupy the same horizontal space as a CJK (Chinese, Japanese, and Korean) ideograph. It is primarily used in East Asian typography as a spacing or standalone mark, distinct from the combining macron (U+0304) which attaches directly to a letter, and it often appears in contexts like indicating a prolonged vowel sound in romanized text or as a decorative separator in fullwidth character sets. This character is part of the Halfwidth and Fullwidth Forms Unicode block, serving as a visual counterpart to the ASCII tilde or underscore in proportional fonts, and it is encoded for compatibility with legacy character encodings that used fullwidth symbols.

General Properties

Code Point	U+FFE3
Version Added	1.1
Name	Fullwidth Macron
Unicode 1.0 Name	Fullwidth Spacing Macron
Block	Halfwidth and Fullwidth Forms
General Category	Modifier Symbol
Canonical Combining Class	Not Reordered
Bidirectional Class	Other Neutral
Decomposition Type	Wide
Decomposition Mapping	"¯" U+00AF Macron

Encodings

HTML Decimal Encoding	￣
HTML Hex Encoding	￣
UTF-8 Encoding	0xEF 0xBF 0xA3
UTF-16 Encoding	0xFFE3
UTF-32 Encoding	0x0000FFE3
C/C++/Java Escape	\uffe3

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Ideographic
East Asian Width	Fullwidth
Case Ignorable	Yes
Changes When NFKC Casefolded	Yes
NFKC Casefold	"SP" U+0020 Space "̄" U+0304 Combining Macron
NFKC Simple Casefold	"SP" U+0020 Space "̄" U+0304 Combining Macron
Script	Common
Script Extensions	Common
Indic Syllabic Category	Other
Diacritic	Yes
Vertical Orientation	Transformed Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Other
Sentence Break	Other