U+0407 "Ї" Cyrillic Capital Letter Yi Unicode Character
Unicode Version 17.0
Ї
U+0407 "Ї" Cyrillic Capital Letter Yi is a letter in the Cyrillic script primarily used in the Ukrainian alphabet, where it represents the sound /ji/ as in the English word "yield." It is visually distinct due to the two dots placed above the letter, similar to a diaeresis, and it is the uppercase form of the lowercase "ї". This character should not be confused with the Latin I with diaeresis or the Cyrillic letter I (И), as it has a unique phonetic and orthographic role in languages like Ukrainian and Rusyn.
General Properties
| Code Point | U+0407 |
| Version Added | 1.1 |
| Name | Cyrillic Capital Letter Yi |
| Block | Cyrillic |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "І" U+0406 Cyrillic Capital Letter Byelorussian-Ukrainian I "̈" U+0308 Combining Diaeresis |
Encodings
| HTML Decimal Encoding | Ї |
| HTML Hex Encoding | Ї |
| UTF-8 Encoding | 0xD0 0x87 |
| UTF-16 Encoding | 0x0407 |
| UTF-32 Encoding | 0x00000407 |
| C/C++/Java Escape | \u0407 |
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 | "ї" U+0457 Cyrillic Small Letter Yi |
| Lowercase Code Point | "ї" U+0457 Cyrillic Small Letter Yi |
| Simple Case Folding | "ї" U+0457 Cyrillic Small Letter Yi |
| Case Folding | "ї" U+0457 Cyrillic Small Letter Yi |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ї" U+0457 Cyrillic Small Letter Yi |
| NFKC Simple Casefold | "ї" U+0457 Cyrillic Small Letter Yi |
| Script | Cyrillic |
| Script Extensions | Cyrillic |
| 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 |