锁钥

Traditional form:

鎖鑰

Pinyin (reading):

suǒyuè

Definitions:

• key and lock
• (fig.) strategic place

Characters:

• 锁 - lock, padlock; chains, shackles
• 钥 - lock, key

Traditional characters:

• 鎖 - lock, padlock; chains, shackles
• 鑰 - lock, key