<p><strong>Noun</strong></p><ul><li>Also called preteenager, a boy or girl under the age of 13, especially one between the ages of 9 and 12.</li><li>Preteens, the years immediately preceding one's thirteenth birthday.</li></ul><p><strong>Adjective</strong></p><ul><li>Designating or characteristic of a preteen or preteens; two preteen daughters.</li></ul>