can-do vs vernacular

can-do is not a noun while vernacular is a noun.

Word	Noun	Adjective	Verb	Adverb
can-do	No	Yes	No	No
vernacular	Yes	Yes	No	No

can-do (noun)	vernacular (noun)
	the everyday speech of the people (as distinguished from literary language)
	a characteristic language of a particular group (as among thieves)

can-do (adjective)	vernacular (adjective)
marked by a willingness to tackle a job and get it done	being or characteristic of or appropriate to everyday language