era

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. a period marked by distinctive character or reckoned from a fixed point or event (Freq. 14)
• Syn:
epoch
• Derivationally related forms:
epochal (for: epoch)
• Hypernyms:
time period, period of time, period
• Hyponyms:
day, historic period, age, modern era
• Instance Hyponyms:
Caliphate, Christian era, Common era
2. a major division of geological time;
an era is usually divided into two or more periods
• Syn:
geological era
• Hypernyms:
geological time, geologic time
• Instance Hyponyms:
Cenozoic, Cenozoic era, Age of Mammals, Mesozoic, Mesozoic era,
Age of Reptiles, Paleozoic, Paleozoic era
• Part Holonyms:
eon, aeon
• Part Meronyms:
period, geological period

• Từ đồng nghĩa / Synonyms:
  earned run average, ERA, geological era, epoch