U+F900 "豈" CJK Compatibility Ideograph-# Unicode Character

U+F900 "豈" CJK Compatibility Ideograph-# is a compatibility ideograph from the CJK Compatibility Ideographs block, which was originally encoded to preserve the distinct character forms used in older East Asian character set standards, such as those from Japan, China, or Korea, that differ slightly from their unified counterparts in the main CJK Unified Ideographs block. Specifically, U+F900 corresponds to the CJK unified ideograph U+8C48 (豉), but it is included in the compatibility range to maintain round-trip conversion compatibility with legacy character encodings, where it may have had a different appearance or usage. This character can be found in historical texts or digital documents that relied on earlier encoding systems, and it is rendered as a visually identical or near-identical variant of the standard character, depending on the font and application used.

General Properties

Code Point	U+F900
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	"豈" U+8C48 CJK Unified Ideograph-#

Encodings

HTML Decimal Encoding	豈
HTML Hex Encoding	豈
UTF-8 Encoding	0xEF 0xA4 0x80
UTF-16 Encoding	0xF900
UTF-32 Encoding	0x0000F900
C/C++/Java Escape	\uf900

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	"豈" U+8C48 CJK Unified Ideograph-#
NFKC Simple Casefold	"豈" U+8C48 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+8C48
kDefinition	how? what?
kHangul	개:0
kIRG_KSource	K0-4B50
kKangXi	0000.900
kKorean	KAY
kRSUnicode	151.3
kTotalStrokes	10