| Abbreviation | Definition |
|---|---|
| RUM | Reliable Unicast Messaging |
| RUM | Remington Ultra Magnum |
| RUM | Remote Underwater Manipulator |
| RUM | Restricted User Mode |
| RUM | Return Unused Medicines |
| RUM | Return Unwanted Medicines |
| RUM | Richmond Ultimate Mixed |
| RUMA | Rekan Usaha Mikro Anda |
| RUMA | Relating to Underground Mining Activities |
| RUMA | Request Update Multiple Access |
| RUMA | Road Use Maintenance Agreement |
| RUMBA | Realistic Understandable Measurable Believable and Attainable |
| RUMBA | Relevance Understandable Measurable Behavioral and Attainable |
| RUME | Research in Undergraduate Mathematics Education |
| RUMH | Rational Utility Maximization Hypothesis |
| RUMS | Rafsanjan University of Medical Sciences |
| RUMS | Remote Update Management System |
| RUMUZ | Rumuzda |
| RUMUZ | Rumuzdur |
| RUMUZ | Rumuzlar |