U+0150 "Ő" Latin Capital Letter O with Double Acute Unicode Character
Unicode Version 17.0
Ő
U+0150 "Ő" Latin Capital Letter O with Double Acute is a distinctive letter used primarily in the Hungarian alphabet, where it represents a long, front rounded vowel sound similar to the 'er' in the English word "her" but with rounded lips. It is formed by adding two acute accents above a standard uppercase O, and its lowercase counterpart is U+0151 "ő". This character appears in Hungarian words like "őr" meaning guard and "idő" meaning time, and it also features in other languages such as the Chuvash alphabet. The double acute diacritic marks the vowel as long and distinct from its single-acute counterpart "Ó", which represents a different vowel sound.
General Properties
| Code Point | U+0150 |
| Version Added | 1.1 |
| Name | Latin Capital Letter O with Double Acute |
| Unicode 1.0 Name | Latin Capital Letter O Double Acute |
| Block | Latin Extended-A |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "O" U+004F Latin Capital Letter O "̋" U+030B Combining Double Acute Accent |
Encodings
| HTML Decimal Encoding | Ő |
| HTML Hex Encoding | Ő |
| UTF-8 Encoding | 0xC5 0x90 |
| UTF-16 Encoding | 0x0150 |
| UTF-32 Encoding | 0x00000150 |
| C/C++/Java Escape | \u0150 |
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 | "ő" U+0151 Latin Small Letter O with Double Acute |
| Lowercase Code Point | "ő" U+0151 Latin Small Letter O with Double Acute |
| Simple Case Folding | "ő" U+0151 Latin Small Letter O with Double Acute |
| Case Folding | "ő" U+0151 Latin Small Letter O with Double Acute |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ő" U+0151 Latin Small Letter O with Double Acute |
| NFKC Simple Casefold | "ő" U+0151 Latin Small Letter O with Double 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 |