LEARNit Dictionary
aeon
noun
/ˈiːən/
UK
/ˈiːən/
US
1
an extremely long period of time; thousands of years
ابد, دهر, اعصار, ابدیت
2
a major division of time, divided into eras
ایون, دوران
aeons of geological history
These hills have been worn down over aeons of geological time.