U+1EA9 "ẩ" Latin Small Letter A with Circumflex and Hook Above Unicode Character
Unicode Version 17.0
ẩ
U+1EA9 "ẩ" Latin Small Letter A with Circumflex and Hook Above is a precomposed Vietnamese diacritic letter that combines a base Latin lowercase A with a circumflex accent (ˆ) placed over it and a hook above ( ̉ ) attached to the top right, specifically used in the Vietnamese alphabet to represent the sound of the vowel "â" under the hỏi tone, which indicates a mid-low falling-rising pitch. This character is part of the Latin Extended Additional block and is encoded to support efficient text rendering for Vietnamese, where it appears in words like "ẩm" (meaning damp or moist) and is distinguishable from its counterparts with other tonal marks, such as ấ, ầ, ẫ, and ậ.
General Properties
| Code Point | U+1EA9 |
| Version Added | 1.1 |
| Name | Latin Small Letter A with Circumflex and 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 | "â" U+00E2 Latin Small Letter A with Circumflex "̉" U+0309 Combining Hook Above |
Encodings
| HTML Decimal Encoding | ẩ |
| HTML Hex Encoding | ẩ |
| UTF-8 Encoding | 0xE1 0xBA 0xA9 |
| UTF-16 Encoding | 0x1EA9 |
| UTF-32 Encoding | 0x00001EA9 |
| C/C++/Java Escape | \u1ea9 |
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 | "Ẩ" U+1EA8 Latin Capital Letter A with Circumflex and Hook Above |
| Simple Titlecase Code Point | "Ẩ" U+1EA8 Latin Capital Letter A with Circumflex and Hook Above |
| Uppercase Code Point | "Ẩ" U+1EA8 Latin Capital Letter A with Circumflex and Hook Above |
| Titlecase Code Point | "Ẩ" U+1EA8 Latin Capital Letter A with Circumflex and 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 |