(see usage notes) The period of European history encompassing (roughly) 476–1000 CE. / (Ancient Greece) The Greek Dark Ages (c. 1100–750 BCE). / The dark ages of Cambodia (c. 1450–1863).

plural of age group

Alternative letter-case form of Atomic Age

(idiomatic, US, colloquial) A very long time.

(statistics) The number of people in stated age ranges.

A classification, applied to products, specifying a minimum age for a person using it

Alternative spelling of school-age

(education) An age at which a child is required to attend school.

Synonym of age of majority

plural of silver age