鑰

key / also pr. [yao4]

surname Jin / surname Kim (Korean) / Jurchen Jin dynasty (1115-1234)

gold / chemical element Au / generic term for lustrous and ductile metals / money / golden / highly respected / one of the eight categories of ancient musical instruments 八音[ba1 yin1]

ancient unit of volume (half a 合[ge3], equivalent to 50ml) / ancient flute

key / CL:把[ba3]

public key (in encryption)

(cryptography) key

keys of authority

Today is the key to the past.

private key (in encryption)

master key / skeleton key / passkey

to make a key

key and lock / (fig.) strategic place

keycard

keyhole

keychain

One key opens one lock. / There is a different solution for each problem. (idiom)