1. (v. t.) To remove a bolt from; to unfasten; to unbar; to open.

2. (v. i.) To explain or unfold a matter; to make a revelation.

cast off detach disengage doff free liberate loose loosen release remove take off unbar unbind unbridle unbuckle unbutton uncage unchain unclasp undo unfasten unfetter ungag unglue unhandcuff unhobble unlace unlash unlatch unleash unlock unloose unloosen unmanacle unmuzzle unpen unpinion unshackle unstick unstrap untether untie untruss unyoke weigh anchor