hotelier vs hotelkeeper

hotelier and hotelkeeper both are nouns.

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

As nouns, hotelier and hotelkeeper are synonyms defined as:

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

hotelier (noun)	hotelkeeper (noun)
an owner or manager of hotels	an owner or manager of hotels