U+03AB "Ϋ" Greek Capital Letter Upsilon with Dialytika Unicode Character
U+03AB "Ϋ" Greek Capital Letter Upsilon with Dialytika is a precomposed letter in the Greek script, representing the capital form of the vowel upsilon combined with a dialytika, which is two dots placed over the letter. This diacritic mark indicates that the upsilon is to be pronounced separately from a preceding vowel, typically to prevent it from forming a diphthong, much like the umlaut or diaeresis in other alphabets. In modern Greek, it appears in words such as "Ϋμνος" where it distinguishes pronunciation, and it is used in scholarly or linguistic contexts to denote a distinct syllabic value. The character is part of the Greek and Coptic block in Unicode and is encoded for digital text to accurately represent this specific orthographic form.
General Properties
| Code Point | U+03AB |
| Version Added | 1.1 |
| Name | Greek Capital Letter Upsilon with Dialytika |
| Unicode 1.0 Name | Greek Capital Letter Upsilon Diaeresis |
| Block | Greek and Coptic |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "Υ" U+03A5 Greek Capital Letter Upsilon "̈" U+0308 Combining Diaeresis |
Encodings
| HTML Decimal Encoding | Ϋ |
| HTML Hex Encoding | Ϋ |
| UTF-8 Encoding | 0xCE 0xAB |
| UTF-16 Encoding | 0x03AB |
| UTF-32 Encoding | 0x000003AB |
| C/C++/Java Escape | \u03ab |
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 | "ϋ" U+03CB Greek Small Letter Upsilon with Dialytika |
| Lowercase Code Point | "ϋ" U+03CB Greek Small Letter Upsilon with Dialytika |
| Simple Case Folding | "ϋ" U+03CB Greek Small Letter Upsilon with Dialytika |
| Case Folding | "ϋ" U+03CB Greek Small Letter Upsilon with Dialytika |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ϋ" U+03CB Greek Small Letter Upsilon with Dialytika |
| NFKC Simple Casefold | "ϋ" U+03CB Greek Small Letter Upsilon with Dialytika |
| Script | Greek |
| Script Extensions | Greek |
| 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 |