vernacular vs sawed-off

vernacular is a noun but sawed-off is not a noun.

Word	Noun	Adjective	Verb	Adverb
vernacular	Yes	Yes	No	No
sawed-off	No	Yes	No	No

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

vernacular (adjective)	sawed-off (adjective)
being or characteristic of or appropriate to everyday language	shortened
	well below average height