Un*lock" (?), v. t. [Cf. AS. unlcan. See 1st Un-, and Lock, v. t.]
To unfasten, as what is locked; as, to unlock a door or a chest.
To open, in general; to lay open; to undo.
Unlock your springs, and open all your shades.
[Lord] unlock the spell of sin.
J. H. Newman.
© Webster 1913.