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  1. ep·och
    IPA[ˈepək]
  2. noun

    • 1. a period of time in history or a person's life, typically one marked by notable events or particular characteristics:

      the Victorian epoch
    • 2. the beginning of a distinctive period in the history of someone or something:

      welfare reform was an epoch in the history of U.S. social policy
    • 3. a division of time that is a subdivision of a period and is itself subdivided into ages, corresponding to a series in chronostratigraphy:

      the Pliocene epoch
    • 4. an arbitrarily fixed date relative to which planetary or stellar measurements are expressed.

  3. Variation

    • n.: noun: epoch, plural noun: epochs

    • noun

      a particular period of time in history or a person's life:

      the beginning of a period in the history of someone or something:

    • adjective

      of major importance; likely to have a significant effect on a particular period of time:
    • adjective

      of major importance; likely to have a significant effect on a particular period of time:
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