epoch

Từ điển Oxford Advanced Learner 8th

epoch [epoch epochs] BrE [ˈiːpɒk] NAmE [ˈepək] noun (formal or literary)
1. a period of time in history, especially one during which important events or changes happen
Syn: ↑era
•The death of the emperor marked the end of an epoch in the country's history.
2. (geology)a length of time which is a division of a ↑period
•geological epochs

Word Origin:
early 17th cent. (in the Latin form epocha; originally in the general sense of ‘a date from which succeeding years are numbered’): from modern Latin epocha, from Greek epokhē ‘stoppage, fixed point of time’, from epekhein ‘stop, take up a position’, from epi ‘upon, near to’ + ekhein ‘stay, be in a certain state’.

Example Bank:
•Welfare reform was an epoch in the history of US social policy.
•an epoch of great social change
•the importance of the computer in the present epoch
•The death of the emperor marked the end of an epoch in the country's history.

• Từ đồng nghĩa / Synonyms:
  date of reference, era