(US, informal, hyperbole) A long period of time.
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Eternity, the duration of the universe.
It’s been eons since we last saw each other.
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An immeasurably or indefinitely long period of time.
Traditionally, a luncheon is a lunch that takes an eon.
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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
See all Regional & Other slang on Slangora.