U+303B "〻" Vertical Ideographic Iteration Mark Unicode Character

Unicode Version 17.0

U+303B "〻" Vertical Ideographic Iteration Mark is a typographic symbol used in traditional East Asian writing, particularly in Japanese and Chinese texts, to indicate the repetition of a preceding character or group of characters when written in vertical script, functioning similarly to the horizontal iteration mark (々) but designed specifically for vertical text layouts. Its appearance as a pair of short, slanting strokes is a visual cue for the reader to repeat the ideograph or phrase directly above it, streamlining the text by avoiding full character duplication. While less common in modern digital usage due to the prevalence of horizontal writing, it remains a notable feature in historical documents, calligraphy, and certain formal or stylized vertical inscriptions.

General Properties

Code Point U+303B
Version Added 3.2
Name Vertical Ideographic Iteration Mark
Block CJK Symbols and Punctuation
General Category Modifier Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right

Encodings

HTML Decimal Encoding 〻
HTML Hex Encoding 〻
UTF-8 Encoding 0xE3 0x80 0xBB
UTF-16 Encoding 0x303B
UTF-32 Encoding 0x0000303B
C/C++/Java Escape \u303b

Unicode Properties

NFC Quick Check Yes
NFD Quick Check Yes
NFKC Quick Check Yes
NFKD Quick Check Yes
Numeric Type None
Numeric Value NaN
Line Break Nonstarter
East Asian Width Wide
Case Ignorable Yes
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 Alphabetic letter
Sentence Break OLetter