Preteen
WordNet
adjective
(1) Of or relating to or designed for children between the ages of 9 and 12
"A preteen party"
"Preteen clothing"
noun
(2) A preadolescent boy or girl (usually between 9 and 12 years of age)
"Little league is intended for the preteens"
WiktionaryText
Adjective
- Of, relating to, or designed for, or being children between the ages of about 9 to 12