U+0231 "ȱ" Latin Small Letter O with Dot Above and Macron Unicode Character
U+0231 "ȱ" Latin Small Letter O with Dot Above and Macron is a specialized grapheme used primarily in certain Latin-based orthographies, most notably in the Livonian language for representing a specific long vowel sound. This character is formed by combining a standard lowercase "o" with a combining dot above and a combining macron, indicating both vowel length and a distinctive articulation. It belongs to the Latin Extended-B block of the Unicode standard and is a relatively rare character, not found in common text but essential for accurate digital representation of Livonian and other academic or linguistic transcriptions. Its inclusion in Unicode ensures that such precise phonetic distinctions can be preserved in electronic documents, supporting the documentation and revitalization of endangered languages.
General Properties
| Code Point | U+0231 |
| Version Added | 3.0 |
| Name | Latin Small Letter O with Dot Above and Macron |
| Block | Latin Extended-B |
| General Category | Lowercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "ȯ" U+022F Latin Small Letter O with Dot Above "̄" U+0304 Combining Macron |
Encodings
| HTML Decimal Encoding | ȱ |
| HTML Hex Encoding | ȱ |
| UTF-8 Encoding | 0xC8 0xB1 |
| UTF-16 Encoding | 0x0231 |
| UTF-32 Encoding | 0x00000231 |
| C/C++/Java Escape | \u0231 |
Unicode Properties
| NFC Quick Check | Yes |
| NFKC Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Lowercase | Yes |
| Simple Uppercase Code Point | "Ȱ" U+0230 Latin Capital Letter O with Dot Above and Macron |
| Simple Titlecase Code Point | "Ȱ" U+0230 Latin Capital Letter O with Dot Above and Macron |
| Uppercase Code Point | "Ȱ" U+0230 Latin Capital Letter O with Dot Above and Macron |
| Titlecase Code Point | "Ȱ" U+0230 Latin Capital Letter O with Dot Above and Macron |
| Cased | Yes |
| Changes When Casemapped | Yes |
| Changes When Titlecased | Yes |
| Changes When Uppercased | Yes |
| 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 | Lower |