v. t. [ Cf. AS. unl&unr_;can. See 1st Un-, and Lock, v. t. ] 1. To unfasten, as what is locked; as, to unlock a door or a chest. [ 1913 Webster ]
2. To open, in general; to lay open; to undo. [ 1913 Webster ]
Unlock your springs, and open all your shades. Pope. [ 1913 Webster ]
[ Lord ] unlock the spell of sin. J. H. Newman. [ 1913 Webster ]