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Noun
- 1
key
A device for locking or opening a lock.
Korean definition: 잠금 장치를 잠그거나 열 수 있게 하는 도구.
He took out the key and opened the locked door.
She went to a locksmith and had several keys made identical to her house key.
- 2
key; clue
(figurative) An important piece of information or an object that helps resolve a case or problem.
Korean definition: (비유적으로) 어떠한 문제나 사건을 해결하는 데 도움을 주는 중요한 정보나 사물.
She held the decisive key to solving this problem.
A small clue he handed over became the key that allowed this case to be solved.