Word.ws English Dictionary

Plural of eon

regular plural

The plural of eon is eons.

Forms of eon

Singulareon /ˈi.ɑn/
Pluraleons
Countablecountable

Eons in a sentence

  • It’s been eons since we last saw each other.
  • For eons, the Coasties have served as the final redundant safety systems of our boats.1991 Jan-Jun, Bearkeley Breathed, “Coastie Etiquette: Proper manners during a Coast Guard Drug Inspection”, in Boating, volume 64, numbers…. From the entry coastie
  • Skinks are lizards, but some species have lost their limbs over eons of evolution, giving them a snakelike look.2020 October 11, Veronique Greenwood, “How Some Skinks Lost Their Legs and Then Evolved New Ones”, in The New York Times. From the entry snakelike
  • In brilliant flashes of intermitten illumination I see decades sprouting into centuries and centuries becoming eons and epochs.1975, Robert Silverberg, chapter 31, in The Stochastic Man, Coronet edition, Hodder and Stoughton, published 1978, →ISBN, page 135. From the entry intermitten
  • Sometimes artificial light becomes an evolutionary trap as the age-old biological imperatives of a species, which helped it survive for eons, turn into liabilities.2010, Jane Brox, Brilliant: The Evolution of Artificial Light, page 279. From the entry evolutionary trap

Meaning of eon

  1. noun Eternity, the duration of the universe.
  2. noun An immeasurably or indefinitely long period of time.
  3. noun A long period of time.

Full definition of eon

Questions about the plural of eon

What is the plural of eon?
The plural of eon is eons.
Is eon countable?
Eon is a countable noun.

Source and license

Adapted from Wiktionary: eon (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

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