| Readings | On-reading | かい |
| Kun-reading | あらためる | |
| Meaning | to reform / to renew | |
| Radical |
己
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| Stroke count | ６ | |
| JLPT Level | N3 | |
Stroke order of 「改」
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Vocabulary contains 「改」
| Word | Meaning |
| 改善（かいぜん） | improvement |
| 改訂（かいてい） | revision |
