锁钥

鎖鑰
suǒyuè
  1. key and lock
  2. (fig.) strategic place

CEDICT

  1. (figurative) key (to something)
  2. (figurative) strategic gateway (to an important center or a major city)
  3. (literally) lock and key
  4. key (to something)
  5. lock and key
  6. strategic gateway (to an important center or a major city)

Wiktionary

  1. 事物的关键
  2. 锁和钥匙
  3. 险要之地

維基詞典

Entry Composition

=1 锁 suǒ to lock; to lock up

classifier: 把
=1 锁 suǒ old variant of 锁 suǒ
2 钥 yuè
  1. key
  2. also pr. yào