landsman vs indweller

landsman and indweller both are nouns.

Word	Noun	Adjective	Verb	Adverb
landsman	Yes	No	No	No
indweller	Yes	No	No	No

As nouns, indweller is a hypernym of landsman; that is, indweller is a word with a broader meaning than landsman:

Other hypernyms of landsman include denizen, dweller, habitant, inhabitant.

landsman (noun)	indweller (noun)
an inexperienced sailor; a sailor on the first voyage	a person who inhabits a particular place
a person who lives and works on land	activation by an inner spirit or force or principle