teenager
/ˈtiːnˌeɪ.dʒə(ɹ)/noun
A person between thirteen and nineteen years old (inclusive).
Related words
adultA person who has reached the legal age of majority.toddlerA young child who has started walking but not fully mastered it, typically between one and three years old.elderA leader or senior member of a tribe or community, often of considerable age, respected as an authority figure, especially in a counselling, consultative, or ceremonial role.relativeSomeone connected by blood, marriage, or adoption; someone in the same family.ancestorOne from whom a person is descended, whether on the father's or mother's side, at any distance of time; a progenitor; a forefather; a forebear.strangerA person whom one does not know; a person who is neither a friend nor an acquaintance.