This is the 8299th most frequent Chinese word.
key
The Chinese word "key" (钥匙, yàoshi) refers to a tool used to open locks.
In this sentence, '钥匙' (key) refers to a physical object used to unlock a door.
这是开门的钥匙。
This is the key to open the door.
Here, '关键' (key) abstractly represents the crucial or most important factor in resolving a problem.
问题的关键是找到正确的解决方案。
The key to the problem is finding the right solution.
In this example, '确认键' (confirm key) denotes a specific button on a device such as a keyboard or interface panel.