show off vs ostentate

show off and ostentate both are verbs.

Word	Noun	Adjective	Verb	Adverb
show off	No	No	Yes	No
ostentate	No	No	Yes	No

As verbs, show off and ostentate are synonyms defined as:

show off and ostentate: display proudly; act ostentatiously or pretentiously

Other synonyms of show off include flash, flaunt, swank.

show off (verb)	ostentate (verb)
display proudly; act ostentatiously or pretentiously	display proudly; act ostentatiously or pretentiously