| Definition | rub and wipe; dust, clean |
| Unicode | U+63e9 |
| TCVN Code | V3-3222 |
| Cangjie | QPPA |
| Total strokes | 12 |
| Unicode radical + strokes | 扌 thủ (64) + 9 strokes |
| Hán-Việt reading | khai |
| Mandarin (Pinyin) | kāi |
| Cantonese (Jyutping) | haai1 |
| Vietnamese | day, nhũ "day dứt; day mắt, day huyệt" (vhn) |
| Vietnamese | khải, nhũ "khải can tịnh (chùi)" (gdhn) |