gentlefolk vs folk

gentlefolk and folk both are nouns.

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

As nouns, folk is a hypernym of gentlefolk; that is, folk is a word with a broader meaning than gentlefolk:

Other hypernyms of gentlefolk include common people, folks.

gentlefolk (noun)	folk (noun)
people of good family and breeding and high social status	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