Source: Noto CJK

U+3005 Ideographic Iteration Mark

U+3005 was added to Unicode in version 1.1 (1993). It belongs to the block U+3000 to U+303F CJK Symbols and Punctuation in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Modifier Letter and is mainly used in the Han script.

The glyph is not a composition. It has a Wide East Asian Width. In bidirectional context it acts as Left To Right and is not mirrored. In text U+3005 behaves as Nonstarter regarding line breaks. It has type Other Letter for sentence and Alphabetic Letter for word breaks. The Grapheme Cluster Break is Any.

The Wikipedia has the following information about this codepoint:

Iteration marks are characters or punctuation marks that represent a duplicated character or word.

Representations

System	Representation
Nº	12293
UTF-8	E3 80 85
UTF-16	30 05
UTF-32	00 00 30 05
URL-Quoted	%E3%80%85
HTML hex reference	々
Wrong windows-1252 Mojibake	â—Œã€…
Encoding: JIS0208 (hex bytes)	A1 B9
Adobe Glyph List	ideographiciterationmark
digraph	*_

Elsewhere

Complete Record

Property	Value
Age	1.1 (1993)
Unicode Name	IDEOGRAPHIC ITERATION MARK
Unicode 1 Name	—
Block	CJK Symbols and Punctuation
General Category	Modifier Letter
Script	Han
Bidirectional Category	Left To Right
Combining Class	Not Reordered
Decomposition Type	None
Decomposition Mapping	Ideographic Iteration Mark
Lowercase	✘
Simple Lowercase Mapping	Ideographic Iteration Mark
Lowercase Mapping	Ideographic Iteration Mark
Uppercase	✘
Simple Uppercase Mapping	Ideographic Iteration Mark
Uppercase Mapping	Ideographic Iteration Mark
Simple Titlecase Mapping	Ideographic Iteration Mark
Titlecase Mapping	Ideographic Iteration Mark
Case Folding	Ideographic Iteration Mark
ASCII Hex Digit	✘
Alphabetic	✔
Bidi Control	✘
Bidi Mirrored	✘
Composition Exclusion	✘
Case Ignorable	✔
Changes When Casefolded	✘
Changes When Casemapped	✘
Changes When NFKC Casefolded	✘
Changes When Lowercased	✘
Changes When Titlecased	✘
Changes When Uppercased	✘
Cased	✘
Full Composition Exclusion	✘
Default Ignorable Code Point	✘
Dash	✘
Deprecated	✘
Diacritic	✘
Emoji Modifier Base	✘
Emoji Component	✘
Emoji Modifier	✘
Emoji Presentation	✘
Emoji	✘
Extender	✔
Extended Pictographic	✘
FC NFKC Closure	Ideographic Iteration Mark
Grapheme Cluster Break	Any
Grapheme Base	✔
Grapheme Extend	✘
Grapheme Link	✘
Hex Digit	✘
Hyphen	✘
ID Continue	✔
ID Start	✔
IDS Binary Operator	✘
IDS Trinary Operator and	✘
Ideographic	✘
Indic Mantra Category	—
Indic Positional Category	NA
Indic Syllabic Category	Other
Jamo Short Name	—
Join Control	✘
Logical Order Exception	✘
Math	✘
Noncharacter Code Point	✘
NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Casefold	Ideographic Iteration Mark
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Other Alphabetic	✘
Other Default Ignorable Code Point	✘
Other Grapheme Extend	✘
Other ID Continue	✘
Other ID Start	✘
Other Lowercase	✘
Other Math	✘
Other Uppercase	✘
Prepended Concatenation Mark	✘
Pattern Syntax	✘
Pattern White Space	✘
Quotation Mark	✘
Regional Indicator	✘
Radical	✘
Sentence Break	Other Letter
Soft Dotted	✘
Sentence Terminal	✘
Terminal Punctuation	✘
Unified Ideograph	✘
Variation Selector	✘
Word Break	Alphabetic Letter
White Space	✘
XID Continue	✔
XID Start	✔
Expands On NFC	✘
Expands On NFD	✘
Expands On NFKC	✘
Expands On NFKD	✘
Bidi Paired Bracket	Ideographic Iteration Mark
Bidi Paired Bracket Type	None
East Asian Width	Wide
Hangul Syllable Type	Not Applicable
ISO 10646 Comment	—
Joining Group	No_Joining_Group
Joining Type	Non Joining
Line Break	Nonstarter
Numeric Type	None
Numeric Value	not a number
Simple Case Folding	Ideographic Iteration Mark
Script Extension
Vertical Orientation	U