eon has definitions from the fields of religion,geology
1
[ noun ] an immeasurably long period of time

Synonyms

aeon

2
[ noun ] (geology) the longest division of geological time; two or more eras

Synonyms

aeon

Related terms

geological_time era

3
[ noun ] (in Gnosticism) a divine power or nature emanating from the Supreme Being and playing various roles in the operation of the universe

Synonyms

aeon

Related terms

spiritual_being Gnosticism

*