flake vs whacko

flake and whacko both are nouns.

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

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

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

flake (noun)	whacko (noun)
a small fragment of something broken off from the whole	a person who is regarded as eccentric or mad
a person with an unusual or odd personality
a crystal of snow

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