Meaning of the word eon in English

What does eon mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

eon

US /ˈiː.ɑːn/
UK /ˈiː.ɒn/
"eon" picture

Noun

1.

an indefinitely long period of time; an age

Example:
It felt like eons since we last saw each other.
The process of evolution takes eons to produce significant changes.
2.

a major division of geological time, subdivided into eras

Example:
The Phanerozoic eon is the current geological eon in the Earth's history.
Geologists divide Earth's history into four eons.