U+1EA0 "Ạ" Latin Capital Letter A with Dot Below Unicode Character
Unicode Version 17.0
Ạ
U+1EA0 "Ạ" Latin Capital Letter A with Dot Below is a modified version of the standard Latin letter A, distinguished by a subscript dot placed directly under the character. This diacritical mark is commonly used in the Vietnamese alphabet, where it represents a distinct low, creaky, or falling tone applied to the vowel "A," specifically the nặng tone. In Vietnamese orthography, the letter can also appear with additional tone marks, such as Ạ̀, Ạ́, Ạ̃, or Ạ̉, to indicate different pitch contours. Beyond Vietnamese, the dot below diacritic appears in other romanization systems and languages, such as certain transliterations of African or Indian scripts, often to denote a retroflex or other phonetically distinct variant of the base letter.
General Properties
| Code Point | U+1EA0 |
| Version Added | 1.1 |
| Name | Latin Capital Letter A with Dot Below |
| Block | Latin Extended Additional |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "A" U+0041 Latin Capital Letter A "̣" U+0323 Combining Dot Below |
Encodings
| HTML Decimal Encoding | Ạ |
| HTML Hex Encoding | Ạ |
| UTF-8 Encoding | 0xE1 0xBA 0xA0 |
| UTF-16 Encoding | 0x1EA0 |
| UTF-32 Encoding | 0x00001EA0 |
| C/C++/Java Escape | \u1ea0 |
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 | "ạ" U+1EA1 Latin Small Letter A with Dot Below |
| Lowercase Code Point | "ạ" U+1EA1 Latin Small Letter A with Dot Below |
| Simple Case Folding | "ạ" U+1EA1 Latin Small Letter A with Dot Below |
| Case Folding | "ạ" U+1EA1 Latin Small Letter A with Dot Below |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ạ" U+1EA1 Latin Small Letter A with Dot Below |
| NFKC Simple Casefold | "ạ" U+1EA1 Latin Small Letter A with Dot Below |
| 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 |