unblock (unblocks, present participle unblocking; past and past participle unblocked)

  1. (transitive) To remove or clear a block or obstruction from.
    Synonyms: deobstruct
    We need a plumber to unblock the sink.
  2. (transitive) To free or make available.
  3. (intransitive, card games) In whist, to throw away a high card so as not to interrupt one's partner's long suit.

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