gat vs vernacular

gat and vernacular both are nouns.

Word	Noun	Adjective	Verb	Adverb
gat	Yes	No	No	No
vernacular	Yes	Yes	No	No

gat (noun)	vernacular (noun)
a gangster's pistol	the everyday speech of the people (as distinguished from literary language)
	a characteristic language of a particular group (as among thieves)

gat (adjective)	vernacular (adjective)
	being or characteristic of or appropriate to everyday language