exfoliation vs fleck

exfoliation and fleck both are nouns.

Word	Noun	Adjective	Verb	Adverb
exfoliation	Yes	No	No	No
fleck	Yes	No	Yes	No

As nouns, fleck is a hypernym of exfoliation; that is, fleck is a word with a broader meaning than exfoliation:

exfoliation: a thin flake of dead epidermis shed from the surface of the skin
fleck: a small fragment of something broken off from the whole

Other hypernyms of exfoliation include bit, chip, flake, scrap.

exfoliation (noun)	fleck (noun)
a thin flake of dead epidermis shed from the surface of the skin	a small contrasting part of something
the peeling off in flakes or scales of bark or dead skin	a small fragment of something broken off from the whole

exfoliation (verb)	fleck (verb)
	make a spot or mark onto