v. to clear a passage through or remove a block from; "I had a job at an office where I was called upon to unjam several printers, several times an hour."

v. make (assets) available; "release the holdings in the dictator's bank account"

v. 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