flake vs crackpot

flake and crackpot both are nouns.

Word	Noun	Adjective	Verb	Adverb
flake	Yes	No	Yes	No
crackpot	Yes	No	No	No

As nouns, crackpot is a hyponym of flake; that is, crackpot is a word with a more specific, narrower meaning than flake:

Other hyponyms of flake include crank, fruitcake, nut, nut case, screwball, nutter, wacko, whacko.

flake (noun)	crackpot (noun)
a small fragment of something broken off from the whole	a whimsically eccentric person
a person with an unusual or odd personality
a crystal of snow

flake (verb)	crackpot (verb)
come off in flakes or thin small pieces
cover with flakes or as if with flakes
form into flakes