occupier vs inhabitant

occupier and inhabitant both are nouns.

Word	Noun	Adjective	Verb	Adverb
occupier	Yes	No	No	No
inhabitant	Yes	No	No	No

As nouns, inhabitant is a hypernym of occupier; that is, inhabitant is a word with a broader meaning than occupier:

occupier: someone who lives at a particular place for a prolonged period or who was born there
inhabitant: a person who inhabits a particular place

Other hypernyms of occupier include denizen, dweller, habitant, indweller.

occupier (noun)	inhabitant (noun)
someone who lives at a particular place for a prolonged period or who was born there	a person who inhabits a particular place
a member of a military force who is residing in a conquered foreign country