unblock
verb.
clear or remove an obstruction from
the procedure unblocked his arteries
verb.
play the cards of (a suit) so that the last trick on which a hand can follow suit will be taken by a higher card in the hand of a partner who has the remaining cards of a combined holding
verb.
make (assets) available
release the holdings in the dictator's bank account
Synonym: free, release, unfreeze
Antonym: block