U+0128 "Ĩ" Latin Capital Letter I with Tilde Unicode Character
Unicode Version 17.0
Ĩ
U+0128 "Ĩ" Latin Capital Letter I with Tilde is a precomposed letter used in a small number of languages and phonetic transcription systems to represent a specific vowel sound, most notably the nasalized close front unrounded vowel found in languages such as Portuguese, where it appears in words like "amigo." This character combines a standard capital I with a tilde diacritic placed above it to indicate nasalization, making it distinct from the standalone letter I. It is encoded in the Latin Extended-A block of Unicode and is also used in some African and Native American languages, as well as in the International Phonetic Alphabet for transcription, though it is not a common character in everyday English or most major European languages.
General Properties
| Code Point | U+0128 |
| Version Added | 1.1 |
| Name | Latin Capital Letter I with Tilde |
| Unicode 1.0 Name | Latin Capital Letter I Tilde |
| Block | Latin Extended-A |
| 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+0303 Combining Tilde |
Encodings
| HTML Decimal Encoding | Ĩ |
| HTML Hex Encoding | Ĩ |
| UTF-8 Encoding | 0xC4 0xA8 |
| UTF-16 Encoding | 0x0128 |
| UTF-32 Encoding | 0x00000128 |
| C/C++/Java Escape | \u0128 |
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 | "ĩ" U+0129 Latin Small Letter I with Tilde |
| Lowercase Code Point | "ĩ" U+0129 Latin Small Letter I with Tilde |
| Simple Case Folding | "ĩ" U+0129 Latin Small Letter I with Tilde |
| Case Folding | "ĩ" U+0129 Latin Small Letter I with Tilde |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ĩ" U+0129 Latin Small Letter I with Tilde |
| NFKC Simple Casefold | "ĩ" U+0129 Latin Small Letter I with 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 |