era

/'iərə/
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era

The fossilized skeleton of a dinosaur is partially embedded in a layer of rock, representing a prehistoric era.

Definition
  1. Noun:
    • A major division of geological time: An "era" is a long and distinct period in Earth's history, typically spanning hundreds of millions of years and characterized by specific life forms and geological events. It is usually subdivided into periods.
    • A period marked by distinctive character: An "era" is a significant and identifiable span of history, often defined by particular cultural, social, political, or technological features.
    • (Baseball) A measure of a pitcher's effectiveness: In baseball statistics, "ERA" (Earned Run Average) is a calculation of the average number of earned runs a pitcher allows per nine innings pitched.
Usage Examples
  • Noun (Geological Time):
    • The Mesozoic era is known as the age of dinosaurs.
    • We are currently living in the Cenozoic era.
  • Noun (Historical/Cultural Period):
    • The Victorian era was a time of great industrial change.
    • The digital era has transformed how we communicate.
  • Noun (Baseball Statistic):
    • The pitcher finished the season with an impressive ERA of 2.50.
Advanced Usage
  • "to usher in/mark the dawn of a new era": to signal the beginning of a significant new period.
    • The invention of the internet marked the dawn of a new era in information sharing.
  • "the end of an era": the conclusion of a distinctive and often important period.
    • The closure of the historic factory felt like the end of an era for the town.
Variants and Related Words
  • Epoch (n): A distinct period of time marked by notable events or characteristics; in geology, a subdivision of a period.
    • The Renaissance was an epoch of great artistic achievement.
  • Age (n): A long period of history with a unifying feature.
    • The Bronze Age followed the Stone Age.
  • ERA (Earned Run Average) (n): The specific baseball statistic acronym.
    • A low ERA is a key indicator of a successful pitcher.
Synonyms
  • Period: A length or portion of time.
  • Epoch: A particular period of time marked by distinctive features.
  • Age: A distinct historical period.
Related Phrases
  • Common Era (C.E.) / Before the Common Era (B.C.E.): The secular equivalents of A.D. (Anno Domini) and B.C. (Before Christ) for dating years.
    • The treaty was signed in 1648 C.E.
  • Era of good feelings: A historical period of national unity and political harmony (specifically in U.S. history).
    • The post-war period was described as an era of good feelings.
era

The fossilized skeleton of a dinosaur is partially embedded in a layer of rock, representing a prehistoric era.

Noun
  1. (baseball) a measure of a pitcher's effectiveness; calculated as the average number of earned runs allowed by the pitcher for every nine innings pitched
  2. a major division of geological time; an era is usually divided into two or more periods
  3. a period marked by distinctive character or reckoned from a fixed point or event

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