hotelkeeper vs administrator

hotelkeeper and administrator both are nouns.

Word	Noun	Adjective	Verb	Adverb
hotelkeeper	Yes	No	No	No
administrator	Yes	No	No	No

As nouns, administrator is a hypernym of hotelkeeper; that is, administrator is a word with a broader meaning than hotelkeeper:

Other hypernyms of hotelkeeper include decision maker.

hotelkeeper (noun)	administrator (noun)
an owner or manager of hotels	someone who administers a business
	the party appointed by a probate court to distribute the estate of someone who dies without a will or without naming an executor
	someone who manages a government agency or department