sort by Rank | Alpha
| Possible Meanings | Rank |
| Rosyth Royal Dockyard | **** |
| Rational Rapid Developer | *** |
| Red River Delta | *** |
| Read Receive Data | *** |
| Roessingh Research and Development | *** |
| Removable Rigid Dressing | *** |
| reti radiotelevisive digitali | *** |
| Resource Requirements Document | *** |
| Russian River Division | *** |
| Remediation and Redevelopment Division | *** |
| real right dominant | ** |
| recurrent respiratory disorders | ** |
| Respiratory Rehabilitation Department | ** |
| reverse radical disproportionation | ** |
| Rigid Removable Dressing | ** |
| Rural Residential Development | ** |
| relative risk of death | ** |
| relative risk of dying | ** |
| Run Rate Differential | ** |
| Robot Resource Definition | ** |
| Rose Rosette Disease | ** |
| Radio Research Detachment | ** |
| Remote Release Duck | ** |
| Reduced Resolution Dataset | ** |
| Research Reactors Division | ** |
| Regional Rural Development | ** |
| Revised Resistance Design | ** |
| Rhegmatogenous Retinal Detachments | ** |
| Retrofit Round Damper | ** |
| Reasonable Rate Document | ** |
| Report Requirement Documenter | ** |
| Resource and Rural Development | ** |
| Restricted Radiation Devices | ** |
| Raised Rim Depressions | * |
| Regimental Recon Det | * |
| Restricted Retrieving Dog | * |
| Rashtriya Raksha Dal | * |
| Receiver Register Disable | * |
| Resource Recovery and Disposition | * |
| Retendering Receipt Day | * |
| proprietary Rights to Registration Data | * |
| Railways Research and Development | * |
| Random Rants and Discography | * |
| Rep Robert Dornan | * |
| Representative Richard Durbin | * |
| Research and Rural Development | * |
| Research Results Database | * |
| Resource Recreation Department | * |
| Revised Recommended Decision | * |
| Riga Rigas Dome | * |
| Roanoke Road District | * |
| Rules Relating to Default | * |
| Rules Relating to Discovery | * |
| Russian River District | * |