改

reformation, change, modify, mend, renew, examine, inspect, search

Kun

あらためる · あらたまるaratameru · aratamaru

On

カイkai

Kun is the Japanese reading, used when the kanji stands alone with kana after it. On comes from Chinese and is mostly used in compound words.

Radical

攴rap

Parts

攵rapform of 攴已