The kanji 改 primarily conveys the idea of "change," "reform," "revise," or "correct." It implies making alterations or improvements to something, whether it be a system, a document, or a behavior. It can suggest a deliberate and often significant shift from a previous state.

・On-yomi (音読み): カイ (kai) ・Kun-yomi (訓読み): あらた(める) (aratame(ru)), あら(ためる) (ara(tameru))

⚫︎ 改革 (かいかく) Translation: Reform, change ⚫︎ 改正 (かいせい) Translation: Revision, amendment ⚫︎ 改修 (かいしゅう) Translation: Repair, renovation

The kanji 改 is a phono-semantic compound (形声文字, けいせいもじ). The left side is the radical 己 (おのれ, oneself) and the right side is 殳 (ほこ, a weapon). The original meaning was likely to "correct" or "rectify" something with a weapon, implying forceful change or correction. Over time, it developed into its broader meaning of "change" and "reform." The presence of 己 suggests the need for self-reflection or personal involvement in the process of change.