| Engelsk navneord: epoch | 
| 1. | epoch (om tid) a period marked by distinctive character or reckoned from a fixed point or event | 
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 | Termer med samme betydning (synonymer) | era | 
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 | Mindre specifikke termer | period, period of time, time period | 
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 | Mere specifikke termer | age, day, historic period, modern era | 
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 | Eksempler på forekomster af mere specifikke termer | Caliphate, Christian era, Common era | 
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| 2. | epoch (om tid) (astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded | 
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 | Termer med samme betydning (synonymer) | date of reference | 
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 | Mindre specifikke termer | date | 
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 | Overordnet emneområde | astronomy, uranology | 
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| 3. | epoch (om tid) a unit of geological time that is a subdivision of a period and is itself divided into ages | 
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 | Mindre specifikke termer | geologic time, geological time | 
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 | Eksempler på forekomster af mere specifikke termer | Eocene, Eocene epoch, Glacial epoch, Holocene, Holocene epoch, Miocene, Miocene epoch, Oligocene, Oligocene epoch, Paleocene, Paleocene epoch, Pleistocene, Pleistocene epoch, Pliocene, Pliocene epoch, Recent, Recent epoch | 
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 | Omfatter disse overordnede termer | geological period, period | 
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