youngster

youngster
young‧ster S3 /ˈjʌŋstə $ -ər/ noun [countable]old-fashioned a child or young person
     

THESAURUS

   ▪ child someone who is not yet an adult. You don’t usually use child to talk about babies or teenagers: Many children are scared of the dark. | He’s just a child.
   ▪ kid informal a child. Kid is the usual word to use in everyday spoken English: We left the kids in the car.
   ▪ little boy/little girl a young male or female child: I lived there when I was a little girl. | Little boys love dinosaurs.
   ▪ teenager someone between the ages of 13 and 19: There’s not much for teenagers to do around here.
   ▪ adolescent a young person who is developing into an adult – used especially when talking about the problems these people have: He changed from a cheerful child to a confused adolescent.
   ▪ youth especially disapproving a teenage boy – especially one who is violent and commits crimes: He was attacked by a gang of youths. | a youth court
   ▪ youngster a child or young person – used especially by old people: You youngsters have got your whole life ahead of you. | He’s a bright youngster with a good sense of humour.
   ▪ minor law someone who is not yet legally an adult: It is illegal to sell alcohol to a minor.