H2O vs flake

H2O and flake both are nouns.

Word	Noun	Adjective	Verb	Adverb
H2O	Yes	No	No	No
flake	Yes	No	Yes	No

H2O (noun)	flake (noun)
binary compound that occurs at room temperature as a clear colorless odorless tasteless liquid; freezes into ice below 0 degrees centigrade and boils above 100 degrees centigrade; widely used as a solvent	a small fragment of something broken off from the whole
	a person with an unusual or odd personality
	a crystal of snow

H2O (verb)	flake (verb)
	come off in flakes or thin small pieces
	cover with flakes or as if with flakes
	form into flakes