Definitions for unblockʌnˈblɒk
Random House Webster's College Dictionary
to remove a block or obstruction from.
Origin of unblock:
clear or remove an obstruction from
"the procedure unblocked his arteries"
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
unblock, unfreeze, free, release(verb)
make (assets) available
"release the holdings in the dictator's bank account"
To remove or clear a block or obstruction from.
To free or make available.