of age

belonging to a particular age, at the age of

Adjective
1. having attained a specific age; (`aged' is pronounced as one syllable); "aged ten"; "ten years of age"
(synonym) aged(a), of age(p)
(similar) old

old enough to be allowed to do something (vote,drink etc.) When he came of age we had a big party for him to celebrate.

MAGGIORENNE. DI ETÀ