U+1ECA "Ị" Latin Capital Letter I with Dot Below Unicode Character
U+1ECA "Ị" Latin Capital Letter I with Dot Below is a specialized glyph used primarily in the Vietnamese alphabet to represent a distinct vowel sound that differs from a standard "I". This character is formed by adding a combining dot below the base Latin capital letter I, which serves as a diacritical mark in Vietnamese orthography to indicate a particular tone or phonemic quality, though it is less common than other dotted vowels like Ạ or Ẹ. In Unicode encoding, it is classified under the Latin Extended Additional block, and its lowercase counterpart is the character "ị" at code point U+1ECB. The dot below is a crucial component for accurate transcription and digital representation of certain Vietnamese words, ensuring correct pronunciation and meaning in written communication.
General Properties
| Code Point | U+1ECA |
| Version Added | 1.1 |
| Name | Latin Capital Letter I 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 | "I" U+0049 Latin Capital Letter I "̣" U+0323 Combining Dot Below |
Encodings
| HTML Decimal Encoding | Ị |
| HTML Hex Encoding | Ị |
| UTF-8 Encoding | 0xE1 0xBB 0x8A |
| UTF-16 Encoding | 0x1ECA |
| UTF-32 Encoding | 0x00001ECA |
| C/C++/Java Escape | \u1eca |
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 | "ị" U+1ECB Latin Small Letter I with Dot Below |
| Lowercase Code Point | "ị" U+1ECB Latin Small Letter I with Dot Below |
| Simple Case Folding | "ị" U+1ECB Latin Small Letter I with Dot Below |
| Case Folding | "ị" U+1ECB Latin Small Letter I with Dot Below |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ị" U+1ECB Latin Small Letter I with Dot Below |
| NFKC Simple Casefold | "ị" U+1ECB Latin Small Letter I 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 |