The radical nobun shows a hand or 又 that holds a stick ノ (simplified from the Chinese radical 66 攴 for whip or rap. In this radical, the stick 卜 in the hand 又 is easily cognizable.)
Vocabulary
改善
かいぜん
improvement, continuous improvement
3006
改まる
あらたまる
to be renewed, to be formal, to take a turn for the worse
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