prom

Short definition from Wiktionary

Noun

1. 1
   A promenade concert.
2. 2
   A promenade.
3. 3
   A formal ball held at a high school or college on special occasions; e.g., near the end of the academic year.
4. 4
   Acronym of programmable read-only memory, a chip that can be programmed one or more times (depending on the type) and generally cannot be re-programmed without special equipment (if at all); once programmed and installed in a device, it functions as a read-only chip (as if it had been hard-wired to function that way).
5. 5
   Initialism of prelabor rupture of membranes.
6. 6
   Initialism of passive range of motion.

Proper noun

1. 1
   A surname.
2. 2
   Alternative form of Prome (“the city of Pyay”).