溫故知新 Old wisdom, today’s insight — ONGO

Quick Answer

改 (개) means "change; reform" and is the Day 999 character in ONGO's Cheonjamun-style Hanja course.

Day 999
Radical: 攴 Master

| change; reform
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📝 Idioms (1)

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📚 Daily Words

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📚 Same level (Master) chars

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