eras
- 1Plural of era.
Historians often divide the past into distinct eras marked by major shifts.
The geological record preserves traces of eras stretching back billions of years.
Note
A regular plural, formed with a simple -s, it carries every meaning of the singular. In geology the word is exact: eras are subdivisions of an eon, each split into periods, so the eras of Earth's history are fixed units rather than loose spans. Informally, people speak of the eras of their own lives, each marked by a passing interest. The same letters also pluralize the initialism for earned run average, a baseball statistic.
eras is a form of era
era, noun: A long period of time, especially of history or of someone's activity, marked by particular events, developments or characteristics. Full entry
- Forms
- eraeras plural
- Spelling
- era → eras: add -s
- Sound
- The ending sounds like /z/.
Use it in a sentence
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