eye vs compound eye

eye and compound eye both are nouns.

Word	Noun	Adjective	Verb	Adverb
eye	Yes	No	Yes	No
compound eye	Yes	No	No	No

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

eye: the organ of sight
compound eye: in insects and some crustaceans: composed of many light-sensitive elements each forming a portion of an image

Other hyponyms of eye include naked eye, peeper, oculus dexter, OD, oculus sinister, OS, ocellus, simple eye, stemma.

eye (noun)	compound eye (noun)
a small hole or loop (as in a needle)	in insects and some crustaceans: composed of many light-sensitive elements each forming a portion of an image
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)	compound eye (verb)
look at