eye vs oculus sinister

eye and oculus sinister both are nouns.

Word	Noun	Adjective	Verb	Adverb
eye	Yes	No	Yes	No
oculus sinister	Yes	No	No	No

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

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

eye (noun)	oculus sinister (noun)
a small hole or loop (as in a needle)	the left eye
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)	oculus sinister (verb)
look at