plunge vs perforate

plunge is a noun but perforate is not a noun.

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

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

Other hypernyms of plunge include penetrate.

plunge (noun)	perforate (noun)
a brief swim in water
a steep and rapid fall

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

plunge (verb)	perforate (verb)
begin with vigor	make a hole into or between, as for ease of separation
devote (oneself) fully to	pass into or through, often by overcoming resistance
cause to be immersed
immerse briefly into a liquid so as to wet, coat, or saturate
thrust or throw into
fall abruptly
drop steeply
dash violently or with great speed or impetuosity