English Dictionary

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epoch (ˈiːpɒk



  1. a point in time beginning a new or distinctive period   ⇒  ■ the invention of nuclear weapons marked an epoch in the history of warfare
  2. a long period of time marked by some predominant or typical characteristic; era
  3. (astronomy) a precise date to which information, such as coordinates, relating to a celestial body is referred
  4. (geology) a unit of geological time within a period during which a series of rocks is formed   ⇒  ■ the Pleistocene epoch
  5. (physics) the displacement of an oscillating or vibrating body at zero time

Derived Forms

epochal (ˈɛpˌɒkəl   adjective
ˈepˌochally  adverb

Word Origin

C17: from New Latin epocha, from Greek epokhē cessation; related to ekhein to hold, have


View thesaurus entry
= era, time, age, period, date, aeon

Translations for 'epoch'

  • British English: epoch If you refer to a long period of time as an epoch, you mean that important events or great changes took place during it. NOUNThe chapters are arranged by themes and historical epochs.
  • Brazilian Portuguese: época
  • Chinese: 时代时時代
  • European Spanish: época
  • French: époque
  • German: Epoche
  • Italian: epoca
  • Japanese: >時代画期的な
  • Korean: 신기원
  • Portuguese: época
  • Spanish: época

Example Sentences Including 'epoch'

They swim in time, not dying as we do, but living on, epoch after epoch.
Tepper, Sheri S. A Plague of Angels
That was what lay at the heart of their epoch : a frenzied love affair with speed and sound.
Appiganesi, Lisa Dreams of Innocence
The stub of it resembled some great failed animal from an earlier epoch of Earth's history.
Aldiss, Brian Somewhere East of Life


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