(preferred spelling, with æon) A spirit being emanating from the Godhead.

(Cosmology) Each universe in a series of universes, according to conformal cyclic cosmology.

Eternity.

A period of 1,000,000,000 years.

The longest time period used in geology.

A long period of time.

"It's been eons since we last saw each other."

(usually spelled aeon or æon) A spirit being emanating from the Godhead.