U+01AF "Ư" Latin Capital Letter U with Horn Unicode Character
Unicode Version 17.0
Ư
U+01AF "Ư" Latin Capital Letter U with Horn is a specialized character used in the Vietnamese alphabet to represent a distinct vowel sound, formed by adding a small hook or horn to the standard uppercase U. This diacritical mark modifies the pronunciation of the letter, distinguishing it from the plain U and allowing it to be combined with additional tone marks for accurate written Vietnamese. It is part of the Latin Extended-B block in Unicode, ensuring digital compatibility across different devices and platforms for proper representation of the language.
General Properties
| Code Point | U+01AF |
| Version Added | 1.1 |
| Name | Latin Capital Letter U with Horn |
| Unicode 1.0 Name | Latin Capital Letter U Horn |
| Block | Latin Extended-B |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "U" U+0055 Latin Capital Letter U "̛" U+031B Combining Horn |
Encodings
| HTML Decimal Encoding | Ư |
| HTML Hex Encoding | Ư |
| UTF-8 Encoding | 0xC6 0xAF |
| UTF-16 Encoding | 0x01AF |
| UTF-32 Encoding | 0x000001AF |
| C/C++/Java Escape | \u01af |
Unicode Properties
| NFC Quick Check | Yes |
| NFKC Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Uppercase | Yes |
| Simple Lowercase Code Point | "ư" U+01B0 Latin Small Letter U with Horn |
| Lowercase Code Point | "ư" U+01B0 Latin Small Letter U with Horn |
| Simple Case Folding | "ư" U+01B0 Latin Small Letter U with Horn |
| Case Folding | "ư" U+01B0 Latin Small Letter U with Horn |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ư" U+01B0 Latin Small Letter U with Horn |
| NFKC Simple Casefold | "ư" U+01B0 Latin Small Letter U with Horn |
| 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 | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Alphabetic letter |
| Sentence Break | Upper |