Meaning

  1. A time period of indeterminate length, generally more than one year.
  2. A geochronologic unit of tens to hundreds of millions of years; a subdivision of an eon, and subdivided into periods.
  3. (informal) An indefinite period of time in one’s life characterized by a particular interest.

Frequency

B2
Pronounced as (IPA)
/ˈɪə.ɹə/
Etymology

Borrowed from Late Latin aera.

Notes

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