A young one is a term used to refer to a CHILD or adolescent. The crossword solutions for this term include 'BABE' (4 letters), 'TOT' (3 letters), 'LAD' (3 letters), 'KID' (3 letters), 'TYKE' (4 letters), 'teen' (4 letters), 'CHILD' (5 letters), 'infant' (6 letters), 'BOY' (3 letters), 'TAD' (3 letters), 'CHIT' (4 letters), 'LASS' (4 letters), 'MOPPET' (6 letters), 'teenager' (8 letters), and 'springchicken' (13 letters). All of these words are used to describe a young person, with some being more specific than others. For example, 'BABE' and 'TOT' are typically used to refer to very young children, while 'teenager' and 'springchicken' are used to refer to older adolescents.