U+1ED4 "Ổ" Latin Capital Letter O with Circumflex and Hook Above Unicode Character
Unicode Version 17.0
Ổ
U+1ED4 "Ổ" Latin Capital Letter O with Circumflex and Hook Above is a specialized letter used primarily in the Vietnamese alphabet to represent a specific tonal variant of the vowel “O,” where the circumflex indicates a narrow, closed pronunciation and the hook above (called a dấu hỏi) marks the hỏi tone, characterized by a mid-low, dipping, and then rising pitch. It appears in Vietnamese words like “ổ” meaning “nest” or “đổ” meaning “to pour,” and is encoded in Unicode to support accurate digital representation of the Vietnamese language, ensuring that this distinct character can be properly rendered, stored, and exchanged across computing systems and text platforms.
General Properties
| Code Point | U+1ED4 |
| Version Added | 1.1 |
| Name | Latin Capital Letter O with Circumflex and Hook Above |
| Block | Latin Extended Additional |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "Ô" U+00D4 Latin Capital Letter O with Circumflex "̉" U+0309 Combining Hook Above |
Encodings
| HTML Decimal Encoding | Ổ |
| HTML Hex Encoding | Ổ |
| UTF-8 Encoding | 0xE1 0xBB 0x94 |
| UTF-16 Encoding | 0x1ED4 |
| UTF-32 Encoding | 0x00001ED4 |
| C/C++/Java Escape | \u1ed4 |