U+319A "㆚" Ideographic Annotation Second Mark Unicode Character

Unicode Version 17.0

U+319A "㆚" Ideographic Annotation Second Mark is a specialized symbol used within CJK (Chinese, Japanese, and Korean) script environments to denote the second item in a sequence or annotation, typically found in scholarly or pedagogical texts. It belongs to the Kanbun block, which historically aids in the annotation of classical Chinese texts for Japanese readers by indicating reading order or grammatical particles. Unlike standard numerical markers, this character visually resembles a small circled Kanji or a stylized form, serving as a non-standard ordinal indicator rather than a punctuation mark. Its inclusion in Unicode ensures consistent digital representation for academic works, dictionaries, or liturgical scripts where precise annotation of sequential commentary is required.

General Properties

Code Point U+319A
Version Added 1.1
Name Ideographic Annotation Second Mark
Unicode 1.0 Name Kaeriten Otu
Block Kanbun
General Category Other Symbol
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Super
Decomposition Mapping "乙" U+4E59 CJK Unified Ideograph-#

Encodings

HTML Decimal Encoding ㆚
HTML Hex Encoding ㆚
UTF-8 Encoding 0xE3 0x86 0x9A
UTF-16 Encoding 0x319A
UTF-32 Encoding 0x0000319A
C/C++/Java Escape \u319a

Unicode Properties

NFC Quick Check Yes
NFD Quick Check Yes
Numeric Type None
Numeric Value NaN
Line Break Ideographic
East Asian Width Wide
Changes When NFKC Casefolded Yes
NFKC Casefold "乙" U+4E59 CJK Unified Ideograph-#
NFKC Simple Casefold "乙" U+4E59 CJK Unified Ideograph-#
Script Common
Script Extensions Han
Indic Syllabic Category Other
Vertical Orientation Upright
Grapheme Base Yes
Grapheme Cluster Break Other
Word Break Other
Sentence Break Other