hotelman vs administrator

hotelman and administrator both are nouns.

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

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

Other hypernyms of hotelman include decision maker.

hotelman (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