The process of planning and preparing meals, mainly for all the week and using tupperware or similar, usually to store in the refrigerator.

(sciences, education) Abbreviation of preparation room.

(US) A private or public school intended to prepare its students to get into prestigious universities.

plural of prep room

(US) A student at a prep school. / (US) A person who dresses or behaves in a way characteristic of such a student.

plural of prepster

Prior to psychology.

(US) A course of study taken in preparation for studying psychology.

Before the development or use of psychology.

Before the onset of psychosis.