interior vs midland

interior and midland both are nouns.

Word	Noun	Adjective	Verb	Adverb
interior	Yes	Yes	No	No
midland	Yes	Yes	No	No

As adjectives, interior and midland are synonyms defined as:

interior and midland: of or coming from the middle of a region or country

Other synonyms of interior include upcountry.

As nouns, midland is a hyponym of interior; that is, midland is a word with a more specific, narrower meaning than interior:

Other hyponyms of interior include midst, thick, penetralium.

interior (noun)	midland (noun)
the inner or enclosed surface of something	the interior part of a country
the region that is inside of something

interior (adjective)	midland (adjective)
situated within or suitable for inside a building	of or coming from the middle of a region or country
inside the country
of or coming from the middle of a region or country
inside and toward a center
located inward