U+30FF "ヿ" Katakana Digraph Koto Unicode Character

Unicode Version 17.0

U+30FF "ヿ" Katakana Digraph Koto is a specialized Japanese typographic symbol representing a single character for the sound "koto," which is a combination of the katakana syllables ko (コ) and to (ト). Historically used as an abbreviation or ligature in certain old Japanese texts, particularly in vertical writing for compactness, it is now considered rare and largely archaic, though it remains encoded in Unicode for historical and scholarly purposes rather than for modern everyday use.

General Properties

Code Point U+30FF
Version Added 3.2
Name Katakana Digraph Koto
Block Katakana
General Category Other Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Vertical
Decomposition Mapping "コ" U+30B3 Katakana Letter Ko
"ト" U+30C8 Katakana Letter To

Encodings

HTML Decimal Encoding ヿ
HTML Hex Encoding ヿ
UTF-8 Encoding 0xE3 0x83 0xBF
UTF-16 Encoding 0x30FF
UTF-32 Encoding 0x000030FF
C/C++/Java Escape \u30ff

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 "コ" U+30B3 Katakana Letter Ko
"ト" U+30C8 Katakana Letter To
NFKC Simple Casefold "コ" U+30B3 Katakana Letter Ko
"ト" U+30C8 Katakana Letter To
Script Katakana
Script Extensions Katakana
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 Katakana
Sentence Break OLetter