Eon — Meaning, Definition & Synonyms

noun /ˈē-ən/

Meaning & Definition of Eon

Eon (noun)

  1. an immeasurably or indefinitely long period of time, age
  2. a very large division of geologic time usually longer than an era
  3. a unit of geologic time equal to one billion years

Eon (noun) — Senses, Synonyms & Antonyms

  1. a long or seemingly long period of time

    "it's been eons since I saw a movie at the multiplex"

    "glaciers that formed eons ago"

    similar: age, blue moon, coon's age, cycle, donkey's years (chiefly British), eternity, forever, long, months, moon
    related: infinity, lifetime
    near: flash, instant, jiffy, minute, moment, second, shake, split second, trice, twinkle, twinkling, wink, microsecond, nanosecond

Synonyms, Thesaurus & Another Word for Eon

The most common words with a similar meaning to Eon:

Chiefly British: donkey's years
age, blue moon, coon's age, cycle, eternity, forever, long, months, moon

Related Words for Eon

infinity, lifetime

Near Antonyms of Eon

flash, instant, jiffy, minute, moment, second, shake, split second, trice, twinkle, twinkling, wink, microsecond, nanosecond

Origin & Etymology of Eon

borrowed from Late Latin aeōn "age (in the world's history), evil spirit (in Gnosticism)," borrowed from Greek aiṓn "lifetime, long period of time, age" aye:3

First known use: circa 1642

Frequently Asked Questions about Eon

What does "Eon" mean?

"Eon" means an immeasurably or indefinitely long period of time, age. As a noun, it is defined as: an immeasurably or indefinitely long period of time, age.

What is another word for "Eon"?

Other words for "Eon" include age, blue moon, coon's age, cycle, donkey's years, eternity, forever and long. The best synonym depends on which meaning of "Eon" you intend.

What are different ways to say "Eon"?

There are 12 words and phrases with a similar meaning to "Eon". Common alternatives include age, blue moon, coon's age, cycle, donkey's years, eternity, forever, long, months and moon.

How do you use "Eon" in a sentence?

Examples of "Eon" in a sentence: "it's been eons since I saw a movie at the multiplex"; "glaciers that formed eons ago".

Is "Eon" a noun, verb, or adjective?

"Eon" is a noun.

How do you pronounce "Eon"?

"Eon" is pronounced /ˈē-ən/.

What is the origin of the word "Eon"?

"Eon" comes from borrowed from Late Latin aeōn "age (in the world's history), evil spirit (in Gnosticism)," borrowed from Greek aiṓn "lifetime, long period of time, age" aye:3. First known use: circa 1642.

What is another word for "Eon" meaning "a long or seemingly long period of time"?

When "Eon" (noun) means a long or seemingly long period of time, synonyms include age, blue moon, coon's age, cycle, donkey's years and eternity.