Interior

situated within or suitable for inside a building; "an interior scene"; "interior decoration"; "an interior bathroom without windows"

inside the country; "the British Home Office has broader responsibilities than the United States Department of the Interior"; "the nation''s internal politics"

located inward; "Beethoven''s manuscript looks like a bloody record of a tremendous inner battle"- Leonard Bernstein; "she thinks she has no soul, no interior life, but the truth is that she has no access to it"- David Denby; "an internal sense of rightousness"- A.R.Gurney,Jr.

inside and toward a center; "interior regions of the earth"

of or coming from the middle of a region or country; "upcountry districts"

the region that is inside of something

the inner or enclosed surface of something

the United States federal department charged with conservation and the development of natural resources; created in 1849