| Meaning | Category |
| Lakunai Airport, Rabaul, Papua New Guinea | Regional->Airport Codes |
| Radio Advertising Bureau | Business->Firms |
| Rapid Action Battalion | Governmental->Military |
| Registrar Accreditation Board | Internet |
| Resellers Automated Business | Business->Firms |
| Ringette Association of Burlington | Community->Sports |
| Risk Assessment Board | Governmental->NASA |
| The Ramshackle Ammunition Band | Community->Music |
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