grazing vs skimming

grazing and skimming both are nouns.

Word	Noun	Adjective	Verb	Adverb
grazing	Yes	No	No	No
skimming	Yes	No	No	No

As nouns, grazing and skimming are synonyms defined as:

Other synonyms of grazing include shaving.

grazing (noun)	skimming (noun)
the act of brushing against while passing	the act of removing floating material from the surface of a liquid
the act of grazing	failure to declare income in order to avoid paying taxes on it
	the act of brushing against while passing
	reading or glancing through quickly