adj.
   - situated within or inside; inner. 
▸
(interior to)
 chiefly technical situated further in or within.
 - inland:
 the interior jungle regions.
 - relating to a country's internal or domestic affairs.
 
n.
   - the interior part of something.
 - 
(the interior)
 the inland part of a country or region.
 - 
(the interior)
 the internal affairs of a country:
 the Minister of the Interior.
 
 
  Derivative
  
    - interiorize
 or interiorise v.  - interiorly adv.
 
   
  Etymology
  C15: from L., ‘inner’, compar. adj. from inter ‘within’.