Prom is short for "promenade," which originally referred to a formal march or parade. In the context of high schools, prom is a formal dance party typically held at the end of the school year for graduating students. It originated as a formal social event where young people could practice etiquette and celebrate their transition into adulthood. Over time, prom has evolved into a major social milestone featuring formal attire, dancing, and the tradition of selecting a prom king and queen.