aeon

ae·on

noun \ˈē-ən, ˈē-ˌän\

Definition of AEON

1

: an immeasurably or indefinitely long period of time : age

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

Variants of AEON

ae·on or eon \ˈē-ən, ˈē-ˌän\

Examples of AEON

1. <it's been aeons since I saw a movie at the multiplex>
2. <glaciers that formed aeons ago>

Origin of AEON

Latin, from Greek aiōn — more at aye

First Known Use: circa 1642

Related to AEON

Synonyms: age (or eon), blue moon, coon's age, cycle, donkey's years [chiefly British], eternity, forever, long, months, moon

Related Words: infinity; lifetime

Near Antonyms: flash, instant, jiffy, minute, moment, second, shake, split second, trice, twinkle, twinkling, wink; microsecond, nanosecond

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Other Weights and Measures Terms

avoirdupois weight, calorie, denier, kip, pace, twain

Rhymes with AEON

paean, paeon, zein