prom

noun3

1. •
   (US) a night of dancing in fine clothes that a school holds for its students, often as the year ends

   • Would you like to be my prom date?
   • The greatest moment in my life was the junior/senior prom that we had back in April 2009.
2. •
   (UK) A promenade.
3. •
   (UK) A promenade concert.

verb1

1. •
   (informal) To attend a prom.

noun1

1. •
   Abbreviation of promotion.

noun3

1. •
   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).

   • After you have blown the code into the PROMs, you can read it out, but you can't write to them anymore. — 1992
2. •
   Initialism of prelabor rupture of membranes.
3. •
   Initialism of passive range of motion.