solar facula vs fleck

solar facula and fleck both are nouns.

Word	Noun	Adjective	Verb	Adverb
solar facula	Yes	No	No	No
fleck	Yes	No	Yes	No

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

solar facula: a large bright spot on the sun's photosphere occurring most frequently in the vicinity of sunspots
fleck: a small contrasting part of something

Other hypernyms of solar facula include dapple, maculation, patch, speckle, spot.

solar facula (noun)	fleck (noun)
a large bright spot on the sun's photosphere occurring most frequently in the vicinity of sunspots	a small contrasting part of something
	a small fragment of something broken off from the whole

solar facula (verb)	fleck (verb)
	make a spot or mark onto