A long period of time that seems endless
The definition of a cycle is a period of time or complete set of events that repeat.
The third full moon in a three-month calendrical season that has four full moons.
An indefinitely long period of time:
The length of time that a person or thing has existed:
(Countable) An experience.
A long time:
A long time
Find another word for eon. In this page you can discover 16 synonyms, antonyms, idiomatic expressions, and related words for eon, like: era, eternity, cycle, blue moon, year, forever-and-ever, month-of-sundays, age, time, long and forever-and-a-day.