钥

配钥匙

pèi yào shi

to make a key

金钥

jīn yào

the key (to solving a problem etc)

锁钥

suǒ yuè

key and lock

钥匙卡

yào shi kǎ

keycard

钥匙

yào shi

key

钥匙链

yào shi liàn

keychain

一把钥匙开一把锁

yī bǎ yào shi kāi yī bǎ suǒ

One key opens one lock.

公钥

gōng yào

(cryptography) public key

公开钥匙

gōng kāi yào shi

public key (in encryption)

密钥

mì yào

(cryptography) key

权钥

quán yào

keys of authority

私人钥匙

sī rén yào shi

private key (in encryption)