ostentate vs ostentation

ostentate is not a noun while ostentation is a noun.

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

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

ostentate (verb)	ostentation (verb)
display proudly; act ostentatiously or pretentiously