inside vs midland

inside and midland both are nouns.

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

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

Other hyponyms of inside include midst, thick, penetralium.

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

inside (adjective)	midland (adjective)
relating to or being on the side closer to the center or within a defined space	of or coming from the middle of a region or country
confined to an exclusive group
away from the outer edge
being or applying to the inside of a building

inside (adverb)	midland (adverb)
within a building
on the inside
in reality
with respect to private feelings