era : Idioms & Phrases

• noun the historic period from about 1600 until 1750 when the baroque style of art, architecture, and music flourished in Europe
  Baroque; Baroque period.
  

WordNet

• noun approximately the last 63 million years
  Cenozoic; Age of Mammals.
  

WordNet

• noun the time period beginning with the supposed year of Christ's birth
  Christian era.
  

WordNet

• the present era, commencing with the birth of Christ. It is supposed that owing to an error of a monk (Dionysius Exiguus, d. about 556) employed to calculate the era, its commencement was fixed three or four years too late, so that 1890 should be 1893 or 1894.

Webster 1913

• noun the time period beginning with the supposed year of Christ's birth
  Christian era.
  
• adverb of the period coinciding with the Christian era; preferred by some writers who are not Christians
  C.E.; CE.
  
  • in 200 CE

WordNet

• noun a major division of geological time; an era is usually divided into two or more periods
  era.
  

WordNet

• noun from 230 million to 63 million years ago
  Age of Reptiles; Mesozoic.
  

WordNet

• noun the present or recent times
  

WordNet

• noun from 544 million to about 230 million years ago
  Paleozoic.
  

WordNet

• noun the period from 1920 to 1933 when the sale of alcoholic beverages was prohibited in the United States by a constitutional amendment
  prohibition.
  

WordNet