U+F9EB "匿" CJK Compatibility Ideograph-# Unicode Character

U+F9EB "匿" CJK Compatibility Ideograph-# is a specific character from the CJK (Chinese, Japanese, Korean) Compatibility Ideographs block, representing a variant or simplified form of a standard East Asian character used primarily in historical or legacy text encoding systems. It corresponds to the ideograph for the Chinese character "類" (meaning "kind" or "category"), but is encoded in this compatibility block to ensure roundtrip conversion compatibility between older character sets and modern Unicode standards, rather than for general use in modern writing. Its existence highlights the effort to preserve textual fidelity when migrating from pre-Unicode encoding schemes to Unicode, though it is typically only encountered in specific archival or compatibility contexts.

General Properties

Code Point	U+F9EB
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	"匿" U+533F CJK Unified Ideograph-#

Encodings

HTML Decimal Encoding	匿
HTML Hex Encoding	匿
UTF-8 Encoding	0xEF 0xA7 0xAB
UTF-16 Encoding	0xF9EB
UTF-32 Encoding	0x0000F9EB
C/C++/Java Escape	\uf9eb

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	"匿" U+533F CJK Unified Ideograph-#
NFKC Simple Casefold	"匿" U+533F 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+533F
kDefinition	hide; go into hiding
kHangul	익:0
kIRG_KSource	K0-6C49
kKorean	IK
kRSUnicode	23.9
kTotalStrokes	10