landlubber vs inhabitant

landlubber and inhabitant both are nouns.

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

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

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

landlubber (noun)	inhabitant (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