muku
1.

To remove the outer layer or covering from a fruit, vegetable, or other object, exposing the inner part.

2.

To strip away the skin or shell of something, often in preparation for consumption or further use.

3.

To expose or reveal something that was previously covered or hidden, such as uncovering the truth or emotions.

4.

To widen or open something, often used metaphorically to describe an expression of surprise or astonishment.

5.

To separate the outer elements from an item, indicating a process of refinement or simplification.

Example:

このなしの皮をむくナイフを貸して下さい。