one, 1 / the first in order, foremost / the beginning / the best / a kind of; one of something / (card games) an ace / unity / the bottom string of a shamisen or other Japanese musical instrument

each person

Alternative form of 一々

lactation period

(indicating it is too late for something, or some point of no return has been passed) this late, after such a long time

dawn of a new age

time of creation

school term, trimester semester

adolescence (period between childhood and maturity)

heyday, prime, height