U+01B1 "Ʊ" Latin Capital Letter Upsilon Unicode Character
Unicode Version 17.0
Ʊ
U+01B1 "Ʊ" Latin Capital Letter Upsilon is a typographic glyph representing a close back unrounded vowel, often used in phonetic transcription or in the orthographies of certain African languages. Its design resembles an uppercase Greek upsilon but with a distinct shape, and it is not to be confused with the similar-looking Latin letter Y or the IPA symbol for a near-close near-back rounded vowel. This character belongs to the Latin Extended-B block in Unicode, where it serves as a specialized letter for writing specific linguistic sounds, such as in the Beninese language Fon. Its lowercase counterpart is U+028B "ʊ", which is more widely known as the IPA symbol for the near-close near-back rounded vowel, commonly called "horseshoe u."
General Properties
| Code Point | U+01B1 |
| Version Added | 1.1 |
| Name | Latin Capital Letter Upsilon |
| Block | Latin Extended-B |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
Encodings
| HTML Decimal Encoding | Ʊ |
| HTML Hex Encoding | Ʊ |
| UTF-8 Encoding | 0xC6 0xB1 |
| UTF-16 Encoding | 0x01B1 |
| UTF-32 Encoding | 0x000001B1 |
| C/C++/Java Escape | \u01b1 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| NFKC Quick Check | Yes |
| NFKD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Uppercase | Yes |
| Simple Lowercase Code Point | "ʊ" U+028A Latin Small Letter Upsilon |
| Lowercase Code Point | "ʊ" U+028A Latin Small Letter Upsilon |
| Simple Case Folding | "ʊ" U+028A Latin Small Letter Upsilon |
| Case Folding | "ʊ" U+028A Latin Small Letter Upsilon |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ʊ" U+028A Latin Small Letter Upsilon |
| NFKC Simple Casefold | "ʊ" U+028A Latin Small Letter Upsilon |
| 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 |