What is the meaning of Prep?

Preparation.

A preparatory race or workout.

Abbreviation of preposition.

A prep school.

A student or graduate of a prep school, a preppy.

1. A person using the styles and mannerisms (especially in terms of fashion) associated with prep students.

A person using the styles and mannerisms (especially in terms of fashion) associated with prep students.

Homework; work set to do outside class time.

Nursery school; preschool.

Preparatory level; the last two levels or the fourth and fifth years of preschool; the two levels before first grade.

Alternative form of PrEP.

To prepare.

a start, bounce

Source: wiktionary.org