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