rub vs file

rub and file both are nouns.

Word	Noun	Adjective	Verb	Adverb
rub	Yes	No	Yes	No
file	Yes	No	Yes	No

rub (noun)	file (noun)
the act of rubbing or wiping	a steel hand tool with small sharp teeth on some or all of its surfaces; used for smoothing wood or metal
an unforeseen obstacle	office furniture consisting of a container for keeping papers in order
	a set of related records (either written or electronic) kept together
	a line of persons or things ranged one behind the other

rub (verb)	file (verb)
move over something with pressure	place in a container for keeping records
cause friction	file a formal charge against
scrape or rub as if to relieve itching	record in a public office or in a court of law
	smooth with a file
	proceed in line