U+0230 "Ȱ" Latin Capital Letter O with Dot Above and Macron Unicode Character
U+0230 "Ȱ" Latin Capital Letter O with Dot Above and Macron is a specialized Latin script letter used primarily in the context of certain transliteration systems or phonetic notations, particularly for representing specific sounds in the Uralic Phonetic Alphabet or in academic transcriptions of languages like Old Norse or certain Finno-Ugric languages. The combination of a dot above the letter O indicates a specific vowel quality or length, while the macron (a horizontal line above) typically denotes a long vowel sound, making this character useful for precise linguistic representation where both a modified articulation and extended duration are required. It is encoded in the Unicode block for Latin Extended-B and is distinct from other accented O characters, ensuring accurate text processing and display in digital environments that support this standard.
General Properties
| Code Point | U+0230 |
| Version Added | 3.0 |
| Name | Latin Capital Letter O with Dot Above and Macron |
| Block | Latin Extended-B |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "Ȯ" U+022E Latin Capital Letter O with Dot Above "̄" U+0304 Combining Macron |
Encodings
| HTML Decimal Encoding | Ȱ |
| HTML Hex Encoding | Ȱ |
| UTF-8 Encoding | 0xC8 0xB0 |
| UTF-16 Encoding | 0x0230 |
| UTF-32 Encoding | 0x00000230 |
| C/C++/Java Escape | \u0230 |
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 | "ȱ" U+0231 Latin Small Letter O with Dot Above and Macron |
| Lowercase Code Point | "ȱ" U+0231 Latin Small Letter O with Dot Above and Macron |
| Simple Case Folding | "ȱ" U+0231 Latin Small Letter O with Dot Above and Macron |
| Case Folding | "ȱ" U+0231 Latin Small Letter O with Dot Above and Macron |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ȱ" U+0231 Latin Small Letter O with Dot Above and Macron |
| NFKC Simple Casefold | "ȱ" U+0231 Latin Small Letter O with Dot Above and Macron |
| 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 |