filter vs perforate

filter is a noun but perforate is not a noun.

Word	Noun	Adjective	Verb	Adverb
filter	Yes	No	Yes	No
perforate	No	Yes	Yes	No

As verbs, perforate is a hypernym of filter; that is, perforate is a word with a broader meaning than filter:

Other hypernyms of filter include penetrate.

filter (noun)	perforate (noun)
device that removes something from whatever passes through it
an electrical device that alters the frequency spectrum of signals passing through it

filter (adjective)	perforate (adjective)
	having a hole cut through

filter (verb)	perforate (verb)
remove by passing through a filter	make a hole into or between, as for ease of separation
pass through	pass into or through, often by overcoming resistance
run or flow slowly, as in drops or in an unsteady stream