let go, let go of, release, relinquish - release, as from one's grip; "Let go of the door handle, please!"; "relinquish your grip on the rope--you won't fall"

unlock - set free or release

dig out - dig out from underneath earth or snow

unclog - become or cause to become unobstructed; "The chemical that we poured down the drain unclogged it"

loosen up, unstuff - cause to become unblocked; "The medicine unstuffed my nose in minutes!"

disencumber, disentangle, extricate, untangle - release from entanglement of difficulty; "I cannot extricate myself from this task"

change state, turn - undergo a transformation or a change of position or action; "We turned from Socialism to Capitalism"; "The people turned against the President when he stole the election"

unlock - become unlocked; "The door unlocked from the inside"

declutch - disengage the clutch of a car