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ERA

Pronunciation (US): 

 Dictionary entry overview: What does ERA mean? 

ERA (noun)
  The noun ERA has 3 senses:

1. a period marked by distinctive character or reckoned from a fixed point or event
2. a major division of geological time; an era is usually divided into two or more periods
3. (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

  Familiarity information: ERA used as a noun is uncommon.


 Dictionary entry details 


ERA (noun)


Sense 1era [BACK TO TOP]

Meaning:

A period marked by distinctive character or reckoned from a fixed point or event

Classified under:

Nouns denoting time and temporal relations

Synonyms:

epoch; era

Hypernyms ("era" is a kind of...):

period; period of time; time period (an amount of time)

Hyponyms (each of the following is a kind of "era"):

day (an era of existence or influence)

age; historic period (an era of history having some distinctive feature)

modern era (the present or recent times)

Instance hyponyms:

Caliphate (the era of Islam's ascendancy from the death of Mohammed until the 13th century; some Moslems still maintain that the Moslem world must always have a calif as head of the community)

Christian era; Common era (the time period beginning with the supposed year of Christ's birth)


Sense 2era [BACK TO TOP]

Meaning:

A major division of geological time; an era is usually divided into two or more periods

Classified under:

Nouns denoting time and temporal relations

Synonyms:

geological era; era

Hypernyms ("era" is a kind of...):

geologic time; geological time (the time of the physical formation and development of the earth (especially prior to human history))

Meronyms (parts of "era"):

geological period; period (a unit of geological time during which a system of rocks formed)

Instance hyponyms:

Age of Mammals; Cenozoic; Cenozoic era (approximately the last 63 million years)

Age of Reptiles; Mesozoic; Mesozoic era (from 230 million to 63 million years ago)

Paleozoic; Paleozoic era (from 544 million to about 230 million years ago)

Holonyms ("era" is a part of...):

aeon; eon (the longest division of geological time)


Sense 3ERA [BACK TO TOP]

Meaning:

(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

Classified under:

Nouns denoting communicative processes and contents

Synonyms:

earned run average; ERA

Hypernyms ("ERA" is a kind of...):

criterion; measure; standard; touchstone (a basis for comparison; a reference point against which other things can be evaluated)

Domain category:

baseball; baseball game (a ball game played with a bat and ball between two teams of nine players; teams take turns at bat trying to score runs)


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