crack; scratch; scar

Explanation

〔欠〕

1. crack; scratch; scar
A mark of being broken or cracked or spoiled.

2. flaw; fault; defect
A deficiency or flaw in a certain object or task.

3. shortcoming; weakness
A deficiency in one's character, words, action, etc.

Examples
흠이 나다
흠이 많다
흠이 생기다

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