unblock

verb
  1. 1

    To remove or clear a block or obstruction from.

    โ€œWe need a plumber to unblock the sink.โ€

  2. 2

    To free or make available.

  3. 3

    In whist, to throw away a high card so as not to interrupt one's partner's long suit.

Synonyms

Source: https://en.wiktionary.org/wiki/unblock