aeon vs years

aeon and years both are nouns.

Word	Noun	Adjective	Verb	Adverb
aeon	Yes	No	No	No
years	Yes	No	No	No

As nouns, years is a hypernym of aeon; that is, years is a word with a broader meaning than aeon:

Other hypernyms of aeon include age, long time.

aeon (noun)	years (noun)
(Gnosticism) a divine power or nature emanating from the Supreme Being and playing various roles in the operation of the universe	a late time of life
an immeasurably long period of time	a prolonged period of time
the longest division of geological time	the time during which someone's life continues