penis vs prick

penis and prick both are nouns.

Word	Noun	Adjective	Verb	Adverb
penis	Yes	No	No	No
prick	Yes	No	Yes	No

As nouns, prick is a hyponym of penis; that is, prick is a word with a more specific, narrower meaning than penis:

Other hyponyms of penis include cock, dick, pecker, putz, shaft, tool, micropenis, microphallus, erection, hard-on.

penis (noun)	prick (noun)
the male sex organ	the act of puncturing with a small point
	obscene terms for penis
	insulting terms of address for people who are stupid or irritating or ridiculous
	a depression scratched or carved into a surface

penis (verb)	prick (verb)
	make a small hole into, as with a needle or a thorn
	deliver a sting to
	stab or urge on as if with a pointed stick
	to cause a sharp emotional pain
	to stick up
	cause a stinging pain
	cause a prickling sensation