show off vs swank

show off is not a noun while swank is a noun.

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

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

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

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

show off (noun)	swank (noun)
	elegance by virtue of being fashionable

show off (adjective)	swank (adjective)
	imposingly fashionable and elegant

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