To prepare.
A student or graduate of a prep school, a preppy.
A prep school.
preparatory level; the last two levels or the fourth and fifth years of preschool; the two levels before first grade.
Preparation.
Homework, work set to do outside class time, used widely in public schools and preparatory schools but not state schools.
To set something in advance.
A setting that is set in advance.
Set in advance, or as a default.