ostentate vs splurge

ostentate is not a noun while splurge is a noun.

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

As verbs, splurge is a hyponym of ostentate; that is, splurge is a word with a more specific, narrower meaning than ostentate:

Other hyponyms of ostentate include flex.

ostentate (noun)	splurge (noun)
	any act of immoderate indulgence
	an ostentatious display (of effort or extravagance etc.)

ostentate (verb)	splurge (verb)
display proudly; act ostentatiously or pretentiously	be showy or ostentatious
	indulge oneself