noun
1.
the period of life in which one passes from childhood to maturity
the thought of regaining one's youth
Synonyms: adolescence, greenness, juvenility, prime, puberty, pubescence, salad days, springtide, springtime, youthfulness, youthhood
Related Word: callowness, immaturity, inexperience, unripeness; dewiness
Idioms: awkward age, flower ( or springtime or May) of life
Antonyms: age
2.
Synonyms: child 1, bud, chick, chit, juvenile, kid, moppet, youngling, young one, youngster