hotel manager vs hosteller

hotel manager and hosteller both are nouns.

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

As nouns, hotel manager and hosteller are synonyms defined as:

Other synonyms of hotel manager include hotelier, hotelkeeper, hotelman.

hotel manager (noun)	hosteller (noun)
an owner or manager of hotels	a traveler who lodges in hostels
	an owner or manager of hotels