eon

noun

variant of

  1. 1 :  an immeasurably or indefinitely long period of time :  age

  2. 2 a usually eon :  a very large division of geologic time usually longer than an era b :  a unit of geologic time equal to one billion years


EON Defined for Kids

eon

Definition of eon for Students

  1. variant of aeon


Learn More about eon


Seen and Heard

What made you want to look up eon? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to search out and expose misconduct

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • alphabet-magnets
  • Which is the correct spelling?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ