U+FF55 "u" Fullwidth Latin Small Letter U Unicode Character

Unicode Version 17.0

U+FF55 "u" Fullwidth Latin Small Letter U is a typographic variant of the standard Latin letter "u" that occupies twice the horizontal space of its regular counterpart, specifically designed for use in East Asian text environments such as Japanese, Chinese, and Korean, where characters from Latin scripts are often adjusted to align visually with the uniform width of CJK ideographs. This fullwidth form, part of the Halfwidth and Fullwidth Forms block, maintains the same semantic meaning and phonetic value as the standard lowercase u but is employed primarily in situations requiring monospaced alignment, such as in terminal interfaces, legacy computing systems, or stylized text where mixed scripts must appear balanced. Unlike its common alternative, the halfwidth form, this character ensures that the Latin letter blends seamlessly with adjacent wide characters, preserving the aesthetic gridlike structure typical of traditional East Asian typography.

General Properties

Code Point U+FF55
Version Added 1.1
Name Fullwidth Latin Small Letter U
Block Halfwidth and Fullwidth Forms
General Category Lowercase Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Wide
Decomposition Mapping "u" U+0075 Latin Small Letter U

Encodings

HTML Decimal Encoding u
HTML Hex Encoding u
UTF-8 Encoding 0xEF 0xBD 0x95
UTF-16 Encoding 0xFF55
UTF-32 Encoding 0x0000FF55
C/C++/Java Escape \uff55

Unicode Properties

NFC Quick Check Yes
NFD Quick Check Yes
Numeric Type None
Numeric Value NaN
Line Break Ideographic
East Asian Width Fullwidth
Lowercase Yes
Simple Uppercase Code Point "U" U+FF35 Fullwidth Latin Capital Letter U
Simple Titlecase Code Point "U" U+FF35 Fullwidth Latin Capital Letter U
Uppercase Code Point "U" U+FF35 Fullwidth Latin Capital Letter U
Titlecase Code Point "U" U+FF35 Fullwidth Latin Capital Letter U
Cased Yes
Changes When Casemapped Yes
Changes When NFKC Casefolded Yes
Changes When Titlecased Yes
Changes When Uppercased Yes
NFKC Casefold "u" U+0075 Latin Small Letter U
NFKC Simple Casefold "u" U+0075 Latin Small Letter U
Script Latin
Script Extensions Latin
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 Lower