noun \ˈer-ə, ˈe-rə, ˈir-ə\

: a period of time that is associated with a particular quality, event, person, etc.

Full Definition of ERA

a :  a fixed point in time from which a series of years is reckoned
b :  a memorable or important date or event; especially :  one that begins a new period in the history of a person or thing
:  a system of chronological notation computed from a given date as basis
a :  a period identified by some prominent figure or characteristic feature <the era of the horse and buggy>
b :  a stage in development (as of a person or thing)
c :  a large division of geologic time usually shorter than an eon <Paleozoic era>

Examples of ERA

  1. the era of the horse and buggy
  2. We're just now entering an era of great prosperity.
  3. His death marks the end of an era.

Origin of ERA

Late Latin aera, from Latin, counters, plural of aer-, aes copper, money — more at ore
First Known Use: 1615

Related to ERA

day, epoch, age, period, time
See Synonym Discussion at period

Other Calendar Terms

antedate, estival, gloaming, luster, sesquicentennial

Rhymes with ERA



Definition of ERA

earned run average
Equal Rights Amendment

Other Baseball Terms

alley, cleanup, nightcap, safety, save, shag


noun    (Concise Encyclopedia)

Very long span of geologic time; in formal usage, a portion of geologic time of the second-greatest magnitude (eons are longer). Three eras are recognized: Paleozoic, Mesozoic, and Cenozoic. Because of the difficulties involved in establishing accurate chronologies, the Precambrian, or earliest, eras are classified independently. An era is composed of one or more geologic periods.


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