U+FDEF "" Arabic Presentation Forms-A Unicode Character
Unicode Version 17.0
U+FDEF "" Arabic Presentation Forms-A is a rarely used Arabic ligature, specifically representing the combination of the letters lam (ل), alif (ا), and lam (ل) followed by a superscript alef (ا) in a specific calligraphic form. It belongs to the Arabic Presentation Forms-A block, which contains contextual and stylistic variants of Arabic letters and ligatures intended for text rendering and compatibility with legacy encoding standards, rather than for modern plain text use. This character is not commonly found in everyday digital text but may appear in specialized religious, scholarly, or typographic contexts where traditional Arabic calligraphy is preserved.
General Properties
| Code Point | U+FDEF |
| Version Added | 3.1 |
| Block | Arabic Presentation Forms-A |
| General Category | Unassigned |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Boundary Neutral |
Encodings
| HTML Decimal Encoding |  |
| HTML Hex Encoding |  |
| UTF-8 Encoding | 0xEF 0xB7 0xAF |
| UTF-16 Encoding | 0xFDEF |
| UTF-32 Encoding | 0x0000FDEF |
| C/C++/Java Escape | \ufdef |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| NFKC Quick Check | Yes |
| NFKD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Unknown |
| Script | Unknown |
| Script Extensions | Unknown |
| Indic Syllabic Category | Other |
| Vertical Orientation | Rotated |
| Grapheme Cluster Break | Other |
| Word Break | Other |
| Sentence Break | Other |
| Noncharacter Code Point | Yes |