vulgarism vs backside

vulgarism and backside both are nouns.

Word	Noun	Adjective	Verb	Adverb
vulgarism	Yes	No	No	No
backside	Yes	No	No	No

vulgarism (noun)	backside (noun)
the quality of lacking taste and refinement	the fleshy part of the human body that you sit on
an offensive or indecent word or phrase	the side of an object that is opposite its front