I. in ‧ te ‧ ri ‧ or 1 /ɪnˈtɪəriə $ -ˈtɪriər/ BrE AmE noun
1 . [countable usually singular] the inner part or inside of something OPP exterior :
The interior of the church was dark.
the car’s warm interior
2 . the interior the part of a country that is farthest away from the coast:
The interior of the country is mainly desert.
3 . Minister/Department of the Interior the government minister or department that deals with matters within a country rather than abroad
II. interior 2 BrE AmE adjective [only before noun]
[ Date: 1400-1500 ; Language: French ; Origin: intérieur , from Latin interior , probably from an unrecorded Latin interus 'on the inside' ]
inside or indoors OPP exterior :
The interior walls are all painted white.