Source : Webster's Revised Unabridged Dictionary (1913)

Imprison \Im*pris"on\, v. t. [imp. & p. p. {Imprisoned}; p. pr.
   & vb. n. {Imprisoning}.] [OE. enprisonen, OF. enprisoner, F.
   emprisonner; pref. en- (L. in) + F. & OF. prison. See
   {Prison}.]
   1. To put in prison or jail; To arrest and detain in custody;
      to confine.

            He imprisoned was in chains remediles. --Spenser.

   2. To limit, restrain, or confine in any way.

            Try to imprison the resistless wind.  --Dryden.

   Syn: To incarcerate; confine; immure.

Source : WordNet®

imprison
     v 1: lock up or confine, in or as in a jail; "The suspects were
          imprisoned without trial"; "the murderer was
          incarcerated for the rest of his life" [syn: {incarcerate},
           {lag}, {immure}, {put behind bars}, {jail}, {jug}, {gaol},
           {put away}, {remand}]
     2: confine as if in a prison; "His daughters are virtually
        imprisoned in their own house; he does not let them go out
        without a chaperone"