| Abbreviation | Definition |
|---|---|
| RUC | RVS Update Committee |
| RUCAS | Renton United Cowboy Action Shooters |
| RUCAS | Resilient Urban Centres And Surrounds |
| RUCC | Residencia Universitaria Cardenal Cisneros |
| RUCH | RUCHu |
| RUCK | Ringsted Uni Cykel Klub |
| RUCKSACK | Backpacks |
| RUCSAC | Rucksack |
| RUD | Randomly Uniformly Distributed |
| RUD | Rapid Unscheduled Disassemblies |
| RUD | Reservations Understandings and Declarations |
| RUD | Resource Utilization in Dementia |
| RUD | Risk Uncertainty and Decision |
| RUD | Run Until Done |
| RUDE | Rudeness |
| RUDI | Referential Universal Digital Indexer |
| RUDI | Rennes Urban Data Interface |
| RUDI | Rural Urgent Doctor In |
| RUE | Radiation Use Efficiency |
| RUE | Rich User Experiences |