U+FA55 "突" CJK Compatibility Ideograph-# Unicode Character

U+FA55 "突" CJK Compatibility Ideograph-# is a compatibility ideograph included in the CJK Compatibility Ideographs block, representing a variant or simplified form of the traditional Chinese character for "sudden" or "abrupt," which is typically written as 突. This character was encoded primarily to maintain round-trip compatibility with older character set standards like the Chinese GB 2312 or Korean KS C 5601, where such simplified or variant glyphs were used. It is not intended for general text interchange in modern Unicode usage, where its standard equivalent U+7A81 (突) is preferred.

General Properties

Code Point	U+FA55
Version Added	3.2
Name	CJK Compatibility Ideograph-#
Block	CJK Compatibility Ideographs
General Category	Other Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Canonical
Decomposition Mapping	"突" U+7A81 CJK Unified Ideograph-#

Encodings

HTML Decimal Encoding	突
HTML Hex Encoding	突
UTF-8 Encoding	0xEF 0xA9 0x95
UTF-16 Encoding	0xFA55
UTF-32 Encoding	0x0000FA55
C/C++/Java Escape	\ufa55

Unicode Properties

Full Composition Exclusion	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Ideographic
East Asian Width	Wide
Changes When NFKC Casefolded	Yes
NFKC Casefold	"突" U+7A81 CJK Unified Ideograph-#
NFKC Simple Casefold	"突" U+7A81 CJK Unified Ideograph-#
Script	Han
Script Extensions	Han
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Alphabetic	Yes
Vertical Orientation	Upright
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Other
Sentence Break	OLetter
Ideographic	Yes

Unihan Properties

kCompatibilityVariant	U+7A81
kIRG_JSource	J3-7951
kJinmeiyoKanji	2010:U+7A81
kJIS0213	1,89,49
kRSAdobe_Japan1_6	C+13373+94.4.5 C+13373+116.5.4
kRSUnicode	116.4
kTotalStrokes	9
kUnihanCore2020	J