U+F911 "螺" CJK Compatibility Ideograph-# Unicode Character

Unicode Version 17.0

U+F911 "螺" CJK Compatibility Ideograph-# is a specialized ideograph from the CJK Compatibility Ideographs block, which was created to encode characters that are used in certain legacy East Asian character set standards but are not part of the standard unified CJK (Chinese, Japanese, and Korean) ideographs. This specific character is a compatibility ideograph, meaning it exists primarily to maintain round-trip conversion fidelity with older encoding systems, such as those used in Japanese industrial standards or Chinese national standards, where it represents a variant form of a more common character. Its inclusion in Unicode allows documents and data from those legacy systems to be represented without loss of information, even though its usage is rare in modern, standard text and often overlaps with other, unified characters.

General Properties

Code Point U+F911
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 "螺" U+87BA CJK Unified Ideograph-#

Encodings

HTML Decimal Encoding 螺
HTML Hex Encoding 螺
UTF-8 Encoding 0xEF 0xA4 0x91
UTF-16 Encoding 0xF911
UTF-32 Encoding 0x0000F911
C/C++/Java Escape \uf911

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 "螺" U+87BA CJK Unified Ideograph-#
NFKC Simple Casefold "螺" U+87BA 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+87BA
kDefinition spiral shell; conch; spiral
kHangul 나:0
kIRG_KSource K0-515E
kKorean NA
kRSUnicode 142.11
kTotalStrokes 17