midstream vs eye

midstream and eye both are nouns.

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

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

Other hypernyms of midstream include center, centre, heart, middle.

midstream (noun)	eye (noun)
the middle of a stream	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

midstream (verb)	eye (verb)
	look at