| Name | ARABIC SHADDA ARABIC SHADDAH |
| Unicode Version | 1.1 |
| Block（ブロック） | Arabic（アラビア文字） |
| Plane（面） | Basic Multilingual Plane（基本多言語面） |
| Script | |
| Category | |
| Bidirectional Class | |
| Combining Class | |
| Character is Mirrored | |
| HTML Entity | ّ ّ |
| UTF-8 Encoding | ّ d991 |
| UTF-16 Encoding | ّ 0651 |
| UTF-32 Encoding | ّ 00000651 |