hosteller vs administrator

hosteller and administrator both are nouns.

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

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

Other hypernyms of hosteller include decision maker.

hosteller (noun)	administrator (noun)
a traveler who lodges in hostels	someone who administers a business
an owner or manager of hotels	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