IPA: //ˈpriːskuːl//
KK: /ˈpriːˌskuːl/
This term describes something that is connected to the early years of childhood before a child starts elementary school.
Many children attend preschool to prepare for their education.
A type of school for young children who are not yet old enough to go to kindergarten, where they can learn and play.
My daughter goes to preschool three days a week.
Preschool is formed from "pre-" (meaning before) and "school" (from Old English "scol", meaning a place of learning). The word refers to an educational setting for children before they enter formal schooling.
Think of 'pre-' meaning before, and 'school' as a place of learning — preschool is where children learn before they start formal school.