landowner vs holder

landowner and holder both are nouns.

Word	Noun	Adjective	Verb	Adverb
landowner	Yes	No	No	No
holder	Yes	No	No	No

As nouns, holder is a hypernym of landowner; that is, holder is a word with a broader meaning than landowner:

landowner (noun)	holder (noun)
a holder or proprietor of land	a holding device
	the person who is in possession of a check or note or bond or document of title that is endorsed to him or to whoever holds it
	a person who holds something