U+03AE "ή" Greek Small Letter Eta with Tonos Unicode Character

U+03AE "ή" Greek Small Letter Eta with Tonos is a distinct glyph used in the modern Greek alphabet to represent the letter eta (η, the seventh letter) when it carries a stress accent, known as the tonos. In Greek orthography, the tonos marks the syllable that receives primary stress in a word, distinguishing it from the plain eta (U+03B7) and ensuring correct pronunciation and meaning. This accented character appears commonly in written Greek, such as in the word "ή" (meaning “or”), where it also serves as a conjunction, demonstrating how the diacritic is integral to both the language’s phonetic system and its clarity in text.

General Properties

Code Point	U+03AE
Version Added	1.1
Name	Greek Small Letter Eta with Tonos
Unicode 1.0 Name	Greek Small Letter Eta Tonos
Block	Greek and Coptic
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Canonical
Decomposition Mapping	"η" U+03B7 Greek Small Letter Eta "́" U+0301 Combining Acute Accent

Encodings

HTML Decimal Encoding	ή
HTML Hex Encoding	ή
UTF-8 Encoding	0xCE 0xAE
UTF-16 Encoding	0x03AE
UTF-32 Encoding	0x000003AE
C/C++/Java Escape	\u03ae

Unicode Properties

NFC Quick Check	Yes
NFKC Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
Lowercase	Yes
Simple Uppercase Code Point	"Ή" U+0389 Greek Capital Letter Eta with Tonos
Simple Titlecase Code Point	"Ή" U+0389 Greek Capital Letter Eta with Tonos
Uppercase Code Point	"Ή" U+0389 Greek Capital Letter Eta with Tonos
Titlecase Code Point	"Ή" U+0389 Greek Capital Letter Eta with Tonos
Cased	Yes
Changes When Casemapped	Yes
Changes When Titlecased	Yes
Changes When Uppercased	Yes
Script	Greek
Script Extensions	Greek
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Alphabetic	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Alphabetic letter
Sentence Break	Lower