ass vs vernacular

ass and vernacular both are nouns.

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

ass (noun)	vernacular (noun)
slang for sexual intercourse	the everyday speech of the people (as distinguished from literary language)
hardy and sure-footed animal smaller and with longer ears than the horse	a characteristic language of a particular group (as among thieves)
the fleshy part of the human body that you sit on
a pompous fool

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