The period of life during which a young person reaches sexual maturity and becomes capable of reproduction; the sequence of structural and…

The period following the onset of puberty during which a young person develops from a child into an adult; the condition or state of being…

= adolescence, n.

In expressing the age of a person (rarely also of a thing): any of the years whose numbers end in -teen… In plural. Chiefly in phrases in, out of…

= puberty, n. 1. Obsolete. rare.

= pubescence, n. 1.

Puberty; the fact or condition of arriving or having arrived at puberty.

the state of being in one's teens; one's teenage years.

adolescence.

the awkward age: the time of life when one is no longer a child and yet not properly grown up. (Cf. French l'âge ingrat.)

The condition of being prepubescent; the period immediately preceding puberty.

The period of life preceding puberty, esp. the two or three years immediately before it. Frequently attributive or as adj.: occurring during this…

The period or state of being a teenager.

the age at which a young person is likely to wear jeans; so jean-aged adj.; jean-ager.