owner vs homeowner

owner and homeowner both are nouns.

Word	Noun	Adjective	Verb	Adverb
owner	Yes	No	No	No
homeowner	Yes	No	No	No

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

Other hyponyms of owner include holder, householder, part-owner, saver, shipowner.

owner (noun)	homeowner (noun)
(law) someone who owns (is legal possessor of) a business	someone who owns a home
a person who owns something