Dated form of teenage.

A perennial plant native to North America and widely planted as an ornamental: Tolmiea menziesii

plural of legal age

(idiomatic) In the current era of history.

The age at which a child is presumed to be able to judge the difference between right and wrong / (theology) The time of the Last Judgment

(US, colloquial) A long time; many years.

(Roman Catholicism) Seven years of age, at which age a person is morally liable for the sins that he or she commits.

(archaeology) A short or theoretical prehistoric period between the Neolithic and Bronze Age.

plural of coming of age

plural of drinking age