U+F9AE "瑩" CJK Compatibility Ideograph-# Unicode Character

U+F9AE "瑩" CJK Compatibility Ideograph-# is a compatibility ideograph included in the Unicode standard primarily to preserve the roundtrip integrity of text encoded in earlier East Asian character sets, such as those used in legacy systems before Unicode's widespread adoption. This character represents a specific variant form of a Chinese character, and its designation as a compatibility ideograph means it is a duplicate of a unified CJK (Chinese, Japanese, and Korean) character found elsewhere in Unicode, but encoded here to maintain exact mapping with older standards. It does not introduce a new meaning or distinct usage, but rather ensures that documents converted from older encodings retain their original visual appearance without loss of information.

General Properties

Code Point	U+F9AE
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	"瑩" U+7469 CJK Unified Ideograph-#

Encodings

HTML Decimal Encoding	瑩
HTML Hex Encoding	瑩
UTF-8 Encoding	0xEF 0xA6 0xAE
UTF-16 Encoding	0xF9AE
UTF-32 Encoding	0x0000F9AE
C/C++/Java Escape	\uf9ae

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	"瑩" U+7469 CJK Unified Ideograph-#
NFKC Simple Casefold	"瑩" U+7469 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+7469
kDefinition	lustre of gems; bright, lustrous
kHangul	영:0
kIRG_KSource	K0-6741
kKorean	YENG
kRSUnicode	96.10
kTotalStrokes	15