oculus sinister vs eye

oculus sinister and eye both are nouns.

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

As nouns, eye is a hypernym of oculus sinister; that is, eye is a word with a broader meaning than oculus sinister:

Other hypernyms of oculus sinister include oculus, optic.

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

oculus sinister (verb)	eye (verb)
	look at