| OP | a physician who specializes in surgery |
|---|---|
| OP | (computer science) software that controls the execution of computer programs and may provide various services |
| OP | table on which the patient lies during a surgical operation |
| OP | a room in a hospital equipped for the performance of surgical operations |
| OP | a room in a hospital equipped for the performance of surgical operations |
| OP | the activity of operating something (a machine or business etc.) |
| OP | a planned activity involving many people performing various actions |
| OP | a process or series of acts especially of a practical or mechanical nature involved in a particular form of work |
| OP | a medical procedure involving an incision with instruments |
| OP | (mathematics) calculation by mathematical methods |
| OP | activity by a military or naval force (as a maneuver or campaign) |
| OP | a business especially one run on a large scale |