U+1FFD "´" Greek Oxia Unicode Character

U+1FFD "´" Greek Oxia is a mark used in ancient and polytonic Greek writing, originally functioning as an acute accent to indicate a high pitch or stress on a vowel. It is historically distinct from the tonos, the modern Greek stress mark, though in many digital fonts and contexts they appear identical, and the oxia is now often unified with the tonos for practical rendering. This character primarily appears in scholarly and liturgical texts that preserve classical Greek pronunciation and diacritic conventions.

General Properties

Code Point	U+1FFD
Version Added	1.1
Name	Greek Oxia
Block	Greek Extended
General Category	Modifier Symbol
Canonical Combining Class	Not Reordered
Bidirectional Class	Other Neutral
Decomposition Type	Canonical
Decomposition Mapping	"´" U+00B4 Acute Accent

Encodings

HTML Decimal Encoding	´
HTML Hex Encoding	´
UTF-8 Encoding	0xE1 0xBF 0xBD
UTF-16 Encoding	0x1FFD
UTF-32 Encoding	0x00001FFD
C/C++/Java Escape	\u1ffd

Unicode Properties

Full Composition Exclusion	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Break Before
Case Ignorable	Yes
Changes When NFKC Casefolded	Yes
NFKC Casefold	"SP" U+0020 Space "́" U+0301 Combining Acute Accent
NFKC Simple Casefold	"SP" U+0020 Space "́" U+0301 Combining Acute Accent
Script	Greek
Script Extensions	Greek
Indic Syllabic Category	Other
Diacritic	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Other
Sentence Break	Other