U+F9FF "刺" CJK Compatibility Ideograph-# Unicode Character

U+F9FF "刺" CJK Compatibility Ideograph-# is a compatibility ideograph that represents a variant or duplicate form of the standard Chinese/Japanese character "剌" (meaning to pierce, stab, or kill), but it is encoded in the Compatibility Ideographs block specifically to preserve roundtrip compatibility with older character set standards like the Korean KS X 1001 or Japanese JIS X 0208. Despite its similarity to the unified character, this code point is not recommended for general use in modern text because it is a compatibility form that duplicates an already existing standard character, and its primary purpose is to allow for the exact mapping of legacy encoded text without data loss. In practice, it often appears in historical documents or electronically migrated data where the original encoding used this specific variant glyph.

General Properties

Code Point	U+F9FF
Version Added	1.1
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	"刺" U+523A CJK Unified Ideograph-#

Encodings

HTML Decimal Encoding	刺
HTML Hex Encoding	刺
UTF-8 Encoding	0xEF 0xA7 0xBF
UTF-16 Encoding	0xF9FF
UTF-32 Encoding	0x0000F9FF
C/C++/Java Escape	\uf9ff

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	"刺" U+523A CJK Unified Ideograph-#
NFKC Simple Casefold	"刺" U+523A 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+523A
kDefinition	stab; prick, irritate; prod
kHangul	척:0
kIRG_KSource	K0-7427
kKorean	CHEK
kRSUnicode	18.6
kTotalStrokes	8