U+FA42 "既" CJK Compatibility Ideograph-# Unicode Character

U+FA42 "既" CJK Compatibility Ideograph-# is a compatibility ideograph used in the CJK (Chinese, Japanese, and Korean) block, specifically encoded to represent a variant or simplified form of the standard CJK unified ideograph U+65E2 "既," which means "already," "since," or "previously." This character was included in Unicode primarily to maintain round-trip compatibility with older East Asian character encoding standards, such as certain Japanese industrial standards (JIS), where it appeared as a distinct glyph variant. Its usage is largely historical or specialized, as it is not typically employed in modern writing systems, but it ensures that legacy text data can be correctly represented without loss of information when converted to Unicode.

General Properties

Code Point	U+FA42
Version Added	3.2
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	"既" U+65E2 CJK Unified Ideograph-#

Encodings

HTML Decimal Encoding	既
HTML Hex Encoding	既
UTF-8 Encoding	0xEF 0xA9 0x82
UTF-16 Encoding	0xFA42
UTF-32 Encoding	0x0000FA42
C/C++/Java Escape	\ufa42

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	"既" U+65E2 CJK Unified Ideograph-#
NFKC Simple Casefold	"既" U+65E2 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+65E2
kIRG_JSource	J3-752B
kJIS0213	1,85,11
kRSAdobe_Japan1_6	C+13334+71.5.7
kRSUnicode	71.5
kTotalStrokes	11