U+1E52 "Ṓ" Latin Capital Letter O with Macron and Acute Unicode Character
Unicode Version 17.0
Ṓ
U+1E52 "Ṓ" Latin Capital Letter O with Macron and Acute is a composite glyph used primarily in certain Latin-based orthographies and linguistic transcription systems to represent a specific vocalic sound or tonal distinction. It combines the base Latin letter O with a macron (a horizontal line above indicating length) and an acute accent (indicating stress or a high tone), making it useful for languages such as Livonian or for scholarly notation of Old English and other historical texts. This character is encoded in the Latin Extended Additional block of Unicode and is typically employed in phonetic or diacritic-rich writing where precise vowel quality and prosody need to be conveyed.
General Properties
| Code Point | U+1E52 |
| Version Added | 1.1 |
| Name | Latin Capital Letter O with Macron and Acute |
| Block | Latin Extended Additional |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "Ō" U+014C Latin Capital Letter O with Macron "́" U+0301 Combining Acute Accent |
Encodings
| HTML Decimal Encoding | Ṓ |
| HTML Hex Encoding | Ṓ |
| UTF-8 Encoding | 0xE1 0xB9 0x92 |
| UTF-16 Encoding | 0x1E52 |
| UTF-32 Encoding | 0x00001E52 |
| C/C++/Java Escape | \u1e52 |
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 | "ṓ" U+1E53 Latin Small Letter O with Macron and Acute |
| Lowercase Code Point | "ṓ" U+1E53 Latin Small Letter O with Macron and Acute |
| Simple Case Folding | "ṓ" U+1E53 Latin Small Letter O with Macron and Acute |
| Case Folding | "ṓ" U+1E53 Latin Small Letter O with Macron and Acute |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ṓ" U+1E53 Latin Small Letter O with Macron and Acute |
| NFKC Simple Casefold | "ṓ" U+1E53 Latin Small Letter O with Macron and Acute |
| 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 |