puberty

/ˈpjuːbərti/
noun
  1. The period of life when a person's body changes from a child to an adult, usually between ages 10 and 16, involving physical growth and the development of sexual characteristics.
    • She started puberty earlier than most of her classmates.
    • Puberty can be a confusing time for many young people.
    • During puberty, boys' voices deepen and girls begin menstruating.
Synonyms