eye vs central artery of the retina

eye and central artery of the retina both are nouns.

Word	Noun	Adjective	Verb	Adverb
eye	Yes	No	Yes	No
central artery of the retina	Yes	No	No	No

eye (noun)	central artery of the retina (noun)
a small hole or loop (as in a needle)	a branch of the ophthalmic artery; enters the eyeball with the optic nerve
the organ of sight
good discernment (either visually or as if visually)
attention to what is seen
an area that is approximately central within some larger region

eye (verb)	central artery of the retina (verb)
look at