U+FF46 "ｆ" Fullwidth Latin Small Letter F Unicode Character
U+FF46 "ｆ" Fullwidth Latin Small Letter F is a typographic variant of the standard Latin letter "f" that occupies the full width of a CJK (Chinese, Japanese, and Korean) character cell. It is part of the Halfwidth and Fullwidth Forms Unicode block, designed for compatibility with East Asian character sets where monospaced, square-shaped text is common, such as in traditional terminal displays or printed documents. This character appears visually identical in shape to the standard lowercase "f" but is proportionally wider, aligning with the grid used for ideographic scripts. It is primarily used in contexts where mixed Latin and CJK text requires consistent vertical alignment, such as in Japanese katakana, Korean hangul, or Chinese text, allowing the Latin letter to match the spacing of adjacent fullwidth characters.
General Properties
| Code Point | U+FF46 |
| Version Added | 1.1 |
| Name | Fullwidth Latin Small Letter F |
| Block | Halfwidth and Fullwidth Forms |
| General Category | Lowercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Wide |
| Decomposition Mapping | "f" U+0066 Latin Small Letter F |
Encodings
| HTML Decimal Encoding | ｆ |
| HTML Hex Encoding | ｆ |
| UTF-8 Encoding | 0xEF 0xBD 0x86 |
| UTF-16 Encoding | 0xFF46 |
| UTF-32 Encoding | 0x0000FF46 |
| C/C++/Java Escape | \uff46 |
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 | "Ｆ" U+FF26 Fullwidth Latin Capital Letter F |
| Simple Titlecase Code Point | "Ｆ" U+FF26 Fullwidth Latin Capital Letter F |
| Uppercase Code Point | "Ｆ" U+FF26 Fullwidth Latin Capital Letter F |
| Titlecase Code Point | "Ｆ" U+FF26 Fullwidth Latin Capital Letter F |
| Cased | Yes |
| Changes When Casemapped | Yes |
| Changes When NFKC Casefolded | Yes |
| Changes When Titlecased | Yes |
| Changes When Uppercased | Yes |
| NFKC Casefold | "f" U+0066 Latin Small Letter F |
| NFKC Simple Casefold | "f" U+0066 Latin Small Letter F |
| Script | Latin |
| Script Extensions | Latin |
| Indic Syllabic Category | Other |
| ID Start | Yes |
| XID Start | Yes |
| ID Continue | Yes |
| XID Continue | Yes |
| Alphabetic | Yes |
| Hex Digit | Yes |
| Vertical Orientation | Upright |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Alphabetic letter |
| Sentence Break | Lower |