folds; layers

Explanation

1. folds; layers
A state in which multiple sides or lines are overlapped; or things in such a state.

2. repetition
A state in which similar things or situations occur repeatedly.

3. folds; layers
A word indicating that sides or lines are overlapped as many times as the number preceding it.

Examples
겹으로 된 창문
겹으로 꼰 실
겹으로 끼다

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