sort by Rank | Alpha
| Possible Meanings | Rank |
| Reigns of Battlefield | ***** |
| Register of Business | **** |
| Rules of Business | **** |
| Remaining on Board | *** |
| Reduced Oxygen Breathing | *** |
| Remain on Board | *** |
| Return on Blogging | *** |
| Representative Office B | *** |
| Read Out Buffer | *** |
| Reductie Overige Broeikasgassen | *** |
| Rehabilitation Oversight Board | *** |
| Republic of Botswana | *** |
| residential office business | *** |
| Repository Object Browser | *** |
| Rijksdienst Oudheidkundig Bodemonderzoek | *** |
| Regional Operating Board | *** |
| Radiovy Orientacni Beh | *** |
| Remote Over Bluetooth | *** |
| Royal Oak Boring | *** |
| Royal Oaks Bancshares | *** |
| Royal Observatory Bulletin | *** |
| Research Office Building | *** |
| Radiation Oncology Branch | *** |
| Railway Over-Bridge | ** |
| Road Over Bridges | ** |
| recurrent obstructive bronchitis | ** |
| reduced oxygen-breathing | ** |
| repetitive oscillatory bursting | ** |
| report on board | ** |
| Reagentless Optical Biosensor | ** |
| Ruin of Britain | ** |
| Rhein Ordnance Barracks | ** |
| Range Operations Branch | ** |
| Registry of Business | ** |
| rat osteoblast-like | ** |
| Replace on Burnout | ** |
| Railway over Bridges | ** |
| Result Oriented Budgeting | ** |
| rest of the body | ** |
| Re Order Buffers | ** |
| Regionaal Operationeel Basisplan | ** |
| Royal Oaks Branch | ** |
| Regional Operations Branch | ** |
| Return on Bandwidth | ** |
| Regional Office Building | * |
| Recover from Branchmispredictions | * |
| Ryan Office Building | * |
| Regionaal Onderwijsbureau Brabant | * |
| Remote Outdoor Ballasts | * |
| Retired Officers Bureau | * |
| Road from Begumpet | * |
| Receipt on Board | * |
| Refocusing Opportunity Bulletins | * |
| Rage of the Beast | * |
| Receipt Of Bond | * |
| References On Bentonite | * |
| Refuel Outage Building | * |
| Refueling Outage Building | * |
| Replacement Of Bonds | * |
| Reverend Oswald Best | * |
| Riots Of Boredom | * |
| Rolling Out of Bounds | * |