flake vs flake off

flake is a noun but flake off is not a noun.

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

As verbs, flake and flake off are synonyms defined as:

Other synonyms of flake include peel, peel off.

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

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