U+03C7 "χ" Greek Small Letter Chi Unicode Character

U+03C7 "χ" Greek Small Letter Chi is the twenty-second letter of the Greek alphabet, representing the voiceless velar fricative sound (as in the Scottish "loch" or the German "Bach") in classical and modern Greek, though its pronunciation varies in different linguistic contexts. In mathematics, science, and engineering, it is widely used as a symbol for variables, the chi-squared distribution in statistics, the chromatic number in graph theory, and the electric susceptibility in physics, among other specialized fields. Additionally, it appears in the Chi Rho monogram, an early Christian symbol formed by combining this letter with the Greek letter Rho.

General Properties

Code Point	U+03C7
Version Added	1.1
Name	Greek Small Letter Chi
Block	Greek and Coptic
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right

Encodings

HTML Decimal Encoding	χ
HTML Hex Encoding	χ
UTF-8 Encoding	0xCF 0x87
UTF-16 Encoding	0x03C7
UTF-32 Encoding	0x000003C7
C/C++/Java Escape	\u03c7

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
Lowercase	Yes
Simple Uppercase Code Point	"Χ" U+03A7 Greek Capital Letter Chi
Simple Titlecase Code Point	"Χ" U+03A7 Greek Capital Letter Chi
Uppercase Code Point	"Χ" U+03A7 Greek Capital Letter Chi
Titlecase Code Point	"Χ" U+03A7 Greek Capital Letter Chi
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