| Meaning | Category |
| RAYOVAC Corporation | Business->NYSE Symbols |
| Registrar Of Voters | Governmental->State & Local |
| Relative Ocean Volume | Academic & Science->Ocean Science |
| Remote Operated Valve | Business->Products |
| Remotely Operated Vehicle | Academic & Science->Ocean Science Academic & Science->Universities |
| Remotely Operated Vessel | Governmental->Transportation |
| Remotly Operated Vehicle | Academic & Science->Universities |
| Rescure Rover Game data | Computing->File Extensions |
| River Of Venom | Community->Media |
| Rostov, Russia | Regional->Airport Codes |
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