sort by Rank | Alpha
| Possible Meanings | Rank |
| Of Our Galactic | **** |
| Overview of General | **** |
| Of the Ring Gold | **** |
| Online Roleplaying Game | **** |
| Origin of German | **** |
| Olafur Ragnar Grimsson | **** |
| Operations Research Group | **** |
| Office of the Regulator General | **** |
| Online Reality Games | *** |
| Operational Research Group | *** |
| On the Red Green | *** |
| Ontology Research Group | *** |
| Outgoing Rotation Groups | *** |
| Our Region Greater | *** |
| Owasp Report Generator | *** |
| Optical Rain Gauge | *** |
| Order of the Red Grail | *** |
| Online Resource Group | *** |
| Occupational Research Group | *** |
| Outstanding Recent Graduate | *** |
| Ontario Registrar General | *** |
| Ottawa Rocketry Group | *** |
| Obesity-related glomerulopathy | ** |
| ordered region growing | ** |
| osteocalcin-related gene | ** |
| Ontario Recovery Group | ** |
| Outback Regional Gallery | ** |
| Obj Resource Guide | ** |
| Office Revolution Green | ** |
| Objectivism Resource Guide | ** |
| On the Road Guides | ** |
| Operations Review Group | ** |
| Optical Rain Gauges | ** |
| of race general | ** |
| Oromia Regional Government | ** |
| Oxygen Research Group | ** |
| Ohio Reads Grants | ** |
| Overcrowding Relief Grant | ** |
| overpayment recovery guide | ** |
| Of Response and the Guilt | * |
| Operational Requirements Group | * |
| Optimal Recovery Guideline | * |
| Oz Research Group | * |
| occupational reproductive guides | * |