display vs ostentate

display is a noun but ostentate is not a noun.

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

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

display (noun)	ostentate (noun)
something shown to the public
a visual representation of something
an electronic device that represents information in visual form
exhibiting openly in public view
something intended to communicate a particular impression
behavior that makes your feelings public

display (verb)	ostentate (verb)
to show, make visible or apparent	display proudly; act ostentatiously or pretentiously
attract attention by displaying some body part or posing; of animals