(n-t) few decades
many decades
several decades
(n) several years
(exp) several years standing
over several years
(n) coming-of-age ceremony
(n) adult
person of full age
(n) year of large crop
(n) dates of birth and death
(n) youth
young person
(P)
(n) young persons' association
(n) adolescence
(n) young persons' association
(P)
(n) young people
(n) thousand-year period
(n) millennium
(n) millennium
(n-adv,n) preceding fiscal year
(P)
(n) year on year
on the previous year
(n) (1) prime of one's life
(2) stage of maturity (geology)
(n) perennial (plant)
(n) perennial plant
(n) solar year
(n) woman well past her prime
matron well-advanced in age
(n) the year of the Dragon
(n,adj-no) middle and old age
(n) middle-aged person
person who changes his line in middle of life
(n) woman approaching middle age
(n) adult
(n) lower grades in school
(P)
(n) mandatory retirement system
age-limit retirement system
(n) of the same age
