* Rigorous academic coursework: This typically involves taking a challenging range of subjects, including a significant number of college-preparatory courses like advanced placement (AP) classes, International Baccalaureate (IB) courses, honors courses, and a robust selection of core subjects (English, math, science, social studies).
* Emphasis on college readiness: The school may offer college counseling services, standardized test preparation, and other support designed to help students successfully apply to and transition into higher education.
Essentially, it's a marketing term used by high schools to advertise that their program is geared towards college. It doesn't represent a separate credential or accreditation beyond the standard high school diploma. A student graduates with a regular high school diploma, but the *type* of courses taken and the school's focus signify a "College Prep" emphasis. The specifics of what constitutes a "college prep" curriculum can vary from school to school.