Neonate and Preteen

Neonate noun - A recently born person.

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

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

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