adjective

1. situated within; on the inside; inner
2. away from the coast, border, or frontier; inland
3. of the internal, or domestic, affairs of a country
4. of the inner nature of a person or thing; private, secret, etc.

Etymology: ME < MFr < L, compar. of inter, between: see inter-

noun

1. the interior part of anything; specif.,
   1. the inside of a room or building
   2. the inland part of a country or region
   3. the inner nature of a person or thing
2. a picture, view, etc. of the inside of a room or building
3. the internal, or domestic, affairs of a country the U.S. Department of the Interior