U+03A9 "Ω" Greek Capital Letter Omega Unicode Character

U+03A9 "Ω" Greek Capital Letter Omega is the 24th and final letter of the Greek alphabet, historically representing the long "o" sound. In modern usage, it is iconic as the symbol for electrical resistance, the ohm, in physics and engineering, as well as a common emblem in mathematics, astronomy, and religious or mystical contexts, including its association with the concept of the "end" or ultimate limit, famously paired with Alpha (Α) to signify beginning and end. Its glyph, resembling a horseshoe or a rounded W, is also widely adopted in popular culture, logos, and as a stylistic letterform.

General Properties

Code Point	U+03A9
Version Added	1.1
Name	Greek Capital Letter Omega
Block	Greek and Coptic
General Category	Uppercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right

Encodings

HTML Decimal Encoding	Ω
HTML Hex Encoding	Ω
UTF-8 Encoding	0xCE 0xA9
UTF-16 Encoding	0x03A9
UTF-32 Encoding	0x000003A9
C/C++/Java Escape	\u03a9

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
East Asian Width	Ambiguous
Uppercase	Yes
Simple Lowercase Code Point	"ω" U+03C9 Greek Small Letter Omega
Lowercase Code Point	"ω" U+03C9 Greek Small Letter Omega
Simple Case Folding	"ω" U+03C9 Greek Small Letter Omega
Case Folding	"ω" U+03C9 Greek Small Letter Omega
Cased	Yes
Changes When Casefolded	Yes
Changes When Casemapped	Yes
Changes When Lowercased	Yes
Changes When NFKC Casefolded	Yes
NFKC Casefold	"ω" U+03C9 Greek Small Letter Omega
NFKC Simple Casefold	"ω" U+03C9 Greek Small Letter Omega
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	Upper