Moppet and Preteen

Moppet noun - A young person who is between infancy and adulthood.

Preteen and moppet are semantically related In some cases you can use "Preteen" instead a noun "Moppet".

Preteen noun - A preadolescent boy or girl (usually between 9 and 12 years of age).

Moppet and preteen are semantically related in child topic. Sometimes you can use "Moppet" instead a noun "Preteen", if it concerns topics such as very young person.