U+FAA9 "睊" CJK Compatibility Ideograph-# Unicode Character

U+FAA9 "睊" CJK Compatibility Ideograph-# is a complex glyph from the CJK Compatibility Ideographs block, specifically defined as a compatibility ideograph for the Unihan database, where it represents a variant of the standard Chinese character "𩹽" (U+29E7D), which itself is a rare or obscure historical form. This character was encoded for round-trip compatibility with older East Asian character set standards, such as certain Japanese or Korean industry encodings, where it served to preserve a specific typographic or orthographic variant of a traditional Chinese character related to fish or aquatic creatures, though its practical usage is now largely confined to specialized text processing and archival data, with modern systems often preferring the unified CJK Unified Ideograph representation.

General Properties

Code Point	U+FAA9
Version Added	4.1
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	"睊" U+774A CJK Unified Ideograph-#

Encodings

HTML Decimal Encoding	睊
HTML Hex Encoding	睊
UTF-8 Encoding	0xEF 0xAA 0xA9
UTF-16 Encoding	0xFAA9
UTF-32 Encoding	0x0000FAA9
C/C++/Java Escape	\ufaa9

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	"睊" U+774A CJK Unified Ideograph-#
NFKC Simple Casefold	"睊" U+774A 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+774A
kIRG_KPSource	KP1-5DF3
kRSUnicode	109.7
kTotalStrokes	11