Word

epoch, n.
(epochs)
freq. cnt. 5

a period marked by distinctive character or reckoned from a fixed point or event
<noun.time> freq. cnt.: 19 freq. cnt.: 14 freq. cnt.: 5

epoch era

lexical pointers

derivationally related form

semantic pointers

hypernym

period, period of time, time period

instance hyponym

Caliphate Christian era, Common era

hyponym

day age, historic period modern era

a unit of geological time that is a subdivision of a period and is itself divided into ages
<noun.time>

epoch

semantic pointers

hypernym

geological time, geologic time

instance hyponym

Holocene, Holocene epoch, Recent, Recent epoch Pleistocene, Pleistocene epoch, Glacial epoch Pliocene, Pliocene epoch Miocene, Miocene epoch Oligocene, Oligocene epoch Eocene, Eocene epoch Paleocene, Paleocene epoch

part holonym

period, geological period

(astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded
<noun.time>

date of reference epoch

semantic pointers

domain of synset (topic)

astronomy, uranology

hypernym