U+00DB "Û" Latin Capital Letter U with Circumflex Unicode Character
Unicode Version 17.0
Û
U+00DB "Û" Latin Capital Letter U with Circumflex is a grapheme primarily used in French, where it appears in words like "voûte" to indicate a historical or phonetic vowel quality, and in other languages such as Welsh, Romanian, and Turkish to denote a specific pronunciation, often a long or closed 'u' sound. In the Latin script, the circumflex accent above the U typically signals a change in vowel length, stress, or quality depending on the linguistic context, and in plain text environments it can be represented via Unicode encoding or HTML entity "Û". Its appearance in digital typography supports consistent text rendering across platforms for diverse language users.
General Properties
| Code Point | U+00DB |
| Version Added | 1.1 |
| Name | Latin Capital Letter U with Circumflex |
| Unicode 1.0 Name | Latin Capital Letter U Circumflex |
| Block | Latin-1 Supplement |
| 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+0302 Combining Circumflex Accent |
Encodings
| HTML Decimal Encoding | Û |
| HTML Hex Encoding | Û |
| UTF-8 Encoding | 0xC3 0x9B |
| UTF-16 Encoding | 0x00DB |
| UTF-32 Encoding | 0x000000DB |
| C/C++/Java Escape | \u00db |
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 | "û" U+00FB Latin Small Letter U with Circumflex |
| Lowercase Code Point | "û" U+00FB Latin Small Letter U with Circumflex |
| Simple Case Folding | "û" U+00FB Latin Small Letter U with Circumflex |
| Case Folding | "û" U+00FB Latin Small Letter U with Circumflex |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "û" U+00FB Latin Small Letter U with Circumflex |
| NFKC Simple Casefold | "û" U+00FB Latin Small Letter U with Circumflex |
| 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 |