- eon, aeon - (Gnosticism) a divine power or nature emanating from the Supreme Being and playing various roles in the operation of the universe
--1 is a kind of spiritual being, supernatural being
- eon, aeon - the longest division of geological time
--2 is a kind of geological time, geologic time
--2 has parts: era, geological era - eon, aeon - an immeasurably long period of time
--3 is a kind of long time, age, years
--3 has particulars: