spa vs hotel

spa and hotel both are nouns.

Word	Noun	Adjective	Verb	Adverb
spa	Yes	No	No	No
hotel	Yes	No	No	No

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

spa: a fashionable hotel usually in a resort area
hotel: a building where travelers can pay for lodging and meals and other services

spa (noun)	hotel (noun)
a fashionable hotel usually in a resort area	a building where travelers can pay for lodging and meals and other services
a place of business with equipment and facilities for exercising and improving physical fitness
a health resort near a spring or at the seaside