It depends what context you mean. In computing terms it's Programmable Read Only Memory.
PROM: Programmable Read-Only Memory
it means prom date or girlfriend or boyfriend
Could be Date of Rank or Daily Operations Report or Depth of Repair and Due Out Release
DOR = Drop on request
Jacqueline Dor was born in 1929.
Jacqueline Dor died in 1972.
Ein Dor was created in 1948.
Gil Dor was born in 1952.
Castle Dor was created in 1961.
Dor Namethian.
The duration of Dor - film - is 2.45 hours.
dor (דור) means generation