U+1EE7 "ủ" Latin Small Letter U with Hook Above Unicode Character
Unicode Version 17.0
ủ
U+1EE7 "ủ" Latin Small Letter U with Hook Above is a precomposed letter used primarily in the Vietnamese alphabet to represent the sound /u/ pronounced with a hỏi tone, which is a mid-low rising-falling tone often compared to a questioning intonation. It belongs to the Latin Extended Additional block and is composed of a base Latin small letter "u" combined with a combining hook above diacritical mark, distinguishing it from other tonal variants like "ú" or "ụ". This character is essential for proper transcription and digital communication in Vietnamese, where tonal accuracy is crucial for meaning, and it can also appear in transliterations of other languages or specialized linguistic texts.
General Properties
| Code Point | U+1EE7 |
| Version Added | 1.1 |
| Name | Latin Small Letter U with Hook Above |
| Block | Latin Extended Additional |
| General Category | Lowercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "u" U+0075 Latin Small Letter U "̉" U+0309 Combining Hook Above |
Encodings
| HTML Decimal Encoding | ủ |
| HTML Hex Encoding | ủ |
| UTF-8 Encoding | 0xE1 0xBB 0xA7 |
| UTF-16 Encoding | 0x1EE7 |
| UTF-32 Encoding | 0x00001EE7 |
| C/C++/Java Escape | \u1ee7 |
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 | "Ủ" U+1EE6 Latin Capital Letter U with Hook Above |
| Simple Titlecase Code Point | "Ủ" U+1EE6 Latin Capital Letter U with Hook Above |
| Uppercase Code Point | "Ủ" U+1EE6 Latin Capital Letter U with Hook Above |
| Titlecase Code Point | "Ủ" U+1EE6 Latin Capital Letter U with Hook Above |
| 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 |