hosteller vs hotelier

hosteller and hotelier both are nouns.

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

As nouns, hosteller and hotelier are synonyms defined as:

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

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