unblock - definition and synonyms

verb [transitive] 

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present tense
present participleunblocking
past tenseunblocked
past participleunblocked
  1. 1
    to remove something that is blocking a pipe, tube etc

    Can you unblock the sink?

  2. 2
    mainly journalism to make it possible for a process to start again after it has stopped

    This new concession could unblock talks aimed at ending the strike.