Alternative form of ageplay

Alternative letter-case form of Stone Age

Alternative letter-case form of Bronze Age

Alternative letter-case form of Iron Age

The current era, characterised by the widespread and increasing use of digital technology in society.

(UK) The age after retirement but while one is still young enough to be active; young old age.

The period of United States history from the end of the Civil War to the end of the 19th century, a time marked by rapid economic expansion, a lack of government regulation, and rampant corruption.

(euphemistic, chiefly of a person) Middle-aged or older.

The age of an individual, measured in days, months and years from the time the individual was born, often used in psychometrics.

How old one appears to be based solely on mental ability and function.