plebeian vs folk

plebeian and folk both are nouns.

Word	Noun	Adjective	Verb	Adverb
plebeian	Yes	Yes	No	No
folk	Yes	No	No	No

plebeian (noun)	folk (noun)
one of the common people	the traditional and typically anonymous music that is an expression of the life of people in a community
	people in general (often used in the plural)
	a social division of (usually preliterate) people
	people descended from a common ancestor

plebeian (adjective)	folk (adjective)
of or associated with the great masses of people