hotel manager vs administrator

hotel manager and administrator both are nouns.

Word	Noun	Adjective	Verb	Adverb
hotel manager	Yes	No	No	No
administrator	Yes	No	No	No

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

Other hypernyms of hotel manager include decision maker.

hotel manager (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