U+F959 "陵" CJK Compatibility Ideograph-# Unicode Character

U+F959 "陵" CJK Compatibility Ideograph-# is a compatibility ideograph from the Unicode CJK Compatibility block, representing a variant form of a standard Chinese/Japanese character, primarily used in historical or legacy document encoding systems to ensure round-trip compatibility with older character sets. This specific character corresponds to the standard CJK Unified Ideograph U+6E57, which means "sludge" or "mud" in Chinese and Japanese, but its compatibility variant often appears in modern digital text only when preserving original formatting from source texts that used pre-Unicode encoding standards like CNS 11643 or certain vendor-specific character sets. As a result, U+F959 is rarely used in contemporary writing and is considered a redundant artifact of Unicode’s efforts to maintain backward compatibility.

General Properties

Code Point	U+F959
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	"陵" U+9675 CJK Unified Ideograph-#

Encodings

HTML Decimal Encoding	陵
HTML Hex Encoding	陵
UTF-8 Encoding	0xEF 0xA5 0x99
UTF-16 Encoding	0xF959
UTF-32 Encoding	0x0000F959
C/C++/Java Escape	\uf959

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	"陵" U+9675 CJK Unified Ideograph-#
NFKC Simple Casefold	"陵" U+9675 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+9675
kDefinition	hill, mound; mausoleum
kHangul	능:0
kIRG_KSource	K0-5278
kKorean	NUNG
kRSUnicode	170.8
kTotalStrokes	11