unlock - definition and synonyms

verb [transitive] 

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present tense
present participleunlocking
past tenseunlocked
past participleunlocked
  1. 1
    to open the lock on something such as a door or a window, usually with a key
  2. 2
    mainly journalism if you unlock something that is not available, you make it available
  3. 3
    mainly literary if you unlock the secret or mystery of something, you find out about it