Meaning of “kid” - Learner’s Dictionary

kid

noun [ C ] us uk /kɪd/
I'm just a kid at heart.Shelley has her hands full with three kids under 5.They've hated each other since they were kids.Nothing is as strong as the love you have for your kids.There are thirty kids in the class.
CHILD informal

B1 a child or young person:

school kids
GOAT

a young goat

(Definition of “kid noun” from the Cambridge Learner’s Dictionary © Cambridge University Press)