U+1EAA "Ẫ" Latin Capital Letter A with Circumflex and Tilde Unicode Character
U+1EAA "Ẫ" Latin Capital Letter A with Circumflex and Tilde is a precomposed letter used primarily in the Vietnamese alphabet, where it represents the sound of the letter "A" with both a circumflex accent and a tilde diacritic. The circumflex indicates a specific vowel quality distinct from the plain letter A, while the tilde denotes a creaky or rising-falling tone in the Vietnamese tonal system. This combined character is essential for accurately writing and reading Vietnamese, as the diacritics modify both the phonetic value and the lexical tone of the vowel in words. It is encoded in Unicode as a single code point for compatibility with legacy encodings and ease of text processing, allowing it to be treated as a distinct unit rather than a sequence of combining marks.
General Properties
| Code Point | U+1EAA |
| Version Added | 1.1 |
| Name | Latin Capital Letter A with Circumflex and Tilde |
| Block | Latin Extended Additional |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "Â" U+00C2 Latin Capital Letter A with Circumflex "̃" U+0303 Combining Tilde |
Encodings
| HTML Decimal Encoding | Ẫ |
| HTML Hex Encoding | Ẫ |
| UTF-8 Encoding | 0xE1 0xBA 0xAA |
| UTF-16 Encoding | 0x1EAA |
| UTF-32 Encoding | 0x00001EAA |
| C/C++/Java Escape | \u1eaa |
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 | "ẫ" U+1EAB Latin Small Letter A with Circumflex and Tilde |
| Lowercase Code Point | "ẫ" U+1EAB Latin Small Letter A with Circumflex and Tilde |
| Simple Case Folding | "ẫ" U+1EAB Latin Small Letter A with Circumflex and Tilde |
| Case Folding | "ẫ" U+1EAB Latin Small Letter A with Circumflex and Tilde |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ẫ" U+1EAB Latin Small Letter A with Circumflex and Tilde |
| NFKC Simple Casefold | "ẫ" U+1EAB Latin Small Letter A with Circumflex and Tilde |
| 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 |