萬能鎖 [万－锁]

Jyutping maan6 nang4 so2
Pinyin wàn néng suǒ

Definitions (Wiktionary)
  1. noun, Taiwanese-Hokkien
    master key; skeleton key
    (syn.) 萬能鑰匙, 万能钥匙
Examples (粵典–words.hk)
  1. Cantonese
    万能锁匙
    萬能鎖匙
    maan6 nang4 so2 si4
    • master key