ritz vs ostentation

ritz and ostentation both are nouns.

Word	Noun	Adjective	Verb	Adverb
ritz	Yes	No	No	No
ostentation	Yes	No	No	No

As nouns, ostentation is a hypernym of ritz; that is, ostentation is a word with a broader meaning than ritz:

Other hypernyms of ritz include fanfare, flash.

ritz (noun)	ostentation (noun)
ostentatious display of elegance	pretentious or showy or vulgar display
	lack of elegance as a consequence of being pompous and puffed up with vanity
	a gaudy outward display