U+FF72 "ｲ" Halfwidth Katakana Letter I Unicode Character

U+FF72 "ｲ" Halfwidth Katakana Letter I is a typographic variant of the standard fullwidth Katakana character イ, designed to occupy half the usual character width for compatibility with older computer systems and terminal displays that used a fixed-width grid. Unlike the fullwidth version, this character fits into a single narrow column, making it suitable for environments where space is limited, such as in certain programming contexts or when creating tightly packed text layouts. Its primary function is to preserve the phonetic value of the "i" sound from the Katakana syllabary while adhering to a halfwidth form factor.

General Properties

Code Point	U+FF72
Version Added	1.1
Name	Halfwidth Katakana Letter I
Block	Halfwidth and Fullwidth Forms
General Category	Other Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Narrow
Decomposition Mapping	"イ" U+30A4 Katakana Letter I

Encodings

HTML Decimal Encoding	ｲ
HTML Hex Encoding	ｲ
UTF-8 Encoding	0xEF 0xBD 0xB2
UTF-16 Encoding	0xFF72
UTF-32 Encoding	0x0000FF72
C/C++/Java Escape	\uff72

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Ideographic
East Asian Width	Halfwidth
Changes When NFKC Casefolded	Yes
NFKC Casefold	"イ" U+30A4 Katakana Letter I
NFKC Simple Casefold	"イ" U+30A4 Katakana Letter I
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	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Katakana
Sentence Break	OLetter