imprison in WordNet English dictionary

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"
   imprison  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"
   imprison