sort by Rank | Alpha
| Possible Meanings | Rank |
| Office of Community | ****** |
| On Every Corner | ****** |
| Of Emergency Communications | ***** |
| Ohio Expo Center | ***** |
| Offices of the Corporation | ***** |
| Ovarian Epithelial Cancer | ***** |
| Old English Corpus | ***** |
| Of the Education Council | ***** |
| Outreach and Education Committee | ***** |
| Open End Contract | **** |
| Opportunities in Emergency | **** |
| Ohio Ethics Commission | **** |
| OCEAN Education Center | **** |
| Open Education Centre | **** |
| Odeon Events Centre | **** |
| of exhibits central | **** |
| Oxygen Enhanced Combustion | **** |
| Ontario Electricity Coalition | **** |
| Ohio Edison Company | **** |
| Old Europa Cafe | **** |
| Office of Enterprise Communication | **** |
| Other Employment Costs | **** |
| Office of Exceptional Children | **** |
| Outreach Education Center | *** |
| Orbital Engine Corporation | *** |
| Outdoor Education Centre | *** |
| Organic Electronics Conference | *** |
| Ocala Equestrian Complex | *** |
| Online Ethics Center | *** |
| Outdoor Educational Center | *** |
| OE480 EDTA Chelator | *** |
| Online Electronic Catalog | *** |
| Orange Empire Conference | *** |
| Oregon Environmental Council | *** |
| Oxygen Evolving Comlex | *** |
| Online Education Center | *** |
| Office Equipment Company | *** |
| Office of Exhibits Central | *** |
| Overseas Employment Certificate | *** |
| Organization for Economic Cooperation | *** |
| Or EMT Certification | *** |
| Old Earth Creationism | *** |
| Old Earth Creationists | *** |
| Ocean Engineering Center | *** |
| Overseas Express Consolidators | *** |
| Oxygen Evolving Centre | *** |
| Organization Executive Course | *** |
| Online Electronic Checks | *** |
| Other European Countries | *** |
| Operations and Engineering Center | *** |
| Organic Education Center | *** |
| Organization for Economic Corporation | *** |
| Outdoor Education Center | *** |
| Observatoire de l'Environnement de Corse | *** |
| Overseas Express Canada | *** |
| Organization of Economic Cooperation | *** |
| Olde English Consortium | *** |
| Outdoor Education Centres | *** |
| Organizational Effectiveness Cycle | *** |
| Oxford English Centre | *** |
| Olfactory Ensheathing Cells | *** |
| Open Environment Corporation | *** |
| Office of Education Council | *** |
| Operational Emergency Center | *** |
| Otsego Electric Cooperative | *** |
| Office for Exceptional Children | *** |
| Office Environment Company | *** |
| Office of Equity and Compliance | *** |
| Ormat Energy Converters | *** |
| original engineering consultants | *** |
| Office of Environment and Conservation | *** |
| Offshore Energy Center | *** |
| Organisation for Economic Cooperation | ** |
| O2 equilibrium curve | ** |
| O2 equilibrium curves | ** |
| O2-evolving center | ** |
| O2-evolving complex | ** |
| Oncology Education Committee | ** |
| Osservatorio Epidemiologico Cardiovascolare | ** |
| outer ear canal | ** |
| ovarian epithelial carcinoma | ** |
| Oviduct epithelial cell | ** |
| Oviduct epithelial cells | ** |
| oviductal ephitelial cells | ** |
| oviductal epithelial cell | ** |
| oviductal epithelial cells | ** |
| Oxygen equilibrium curves | ** |
| oxygen evolving center | ** |
| oxygen-evolving complex | ** |
| Oxygenation Equipment Complex | ** |
| oxyhemoglobin equilibrium curve | ** |
| Old Earth Creationist | ** |
| Office Equipment Co | ** |
| Office of the Education Council | ** |
| Overland Expedition Company | ** |
| O(2)-evolving complex | ** |
| Ontario Economic Council | ** |
| Oregon Employers Council | ** |
| O 2 Evolving Complex | ** |
| Optical Extinction Cell | ** |
| Overall Evaluation Criterion | ** |
| Office of Electronic Communications | ** |
| Owen Entrepreneurship Center | ** |
| Outdoor Experience Camp | ** |
| Of the Online Ethics Center | ** |
| Overseas Education Centre | ** |
| Oz Entertainment Company | ** |
| Omagh Enterprise Company | ** |
| Optical Electrical Converter | ** |
| Organizational Executive Course | ** |
| Oryx Energy Company | ** |
| Office for Emergency Communications | ** |
| Olfactory Ensheating Celler | ** |
| Orion Engineering Corporation | ** |
| One Economy Corporation | ** |
| Open Enterprise Computing | ** |
| Overseas Employment Certificates | ** |
| Office of Education and Curriculum | ** |
| Olfactory Ensheating Cells | ** |
| Ontario Energy Corporation | ** |
| Output Edge Control | ** |
| omega empire communicationz | ** |
| Optic Edge Corporation | ** |
| Office Electronics Centre | ** |
| Olympic Environmental Council | ** |
| Outgrowth Endothelial Cells | ** |
| Office of Extension Coordination | ** |
| Oilfield Environmental and Compliance | ** |
| Okinawa Environment Club | ** |
| Online Election Certificate | ** |
| Outdoor Experiential Course | ** |
| Occupational Environmental Control | * |
| ocean enterprise company | * |
| Office of Executive Clemency | * |
| Organizational Effectiveness Consulting | * |
| Office Engine Company | * |
| Operational Entomology Course | * |
| Orana Education Centre | * |
| Organisation Enhancement Consultancy | * |
| Outreach English Classes | * |
| Office of Employee Concerns | * |
| Ouachita Enterprise Community | * |
| Oxidation Exhaust Catalyst | * |
| Office of Engineering and Construction | * |
| Open Engineering Connectivity | * |
| Of the Owen Entrepreneurship Center | * |
| Ontario Electrical Coalition | * |
| Operations Effectiveness Council | * |
| Optimized Environmental Characterization | * |
| Optional Expedited Certificate | * |
| Ohio Energy Credits | * |
| Ouachita Enterprise Corporation | * |
| Organization for Energy Conservation | * |
| Outdoor Ethics Committee | * |
| Office of Economic Conversion | * |
| Office of Enforcement Compliance | * |
| Office of Environmental Compliance | * |
| Offshore Europe Conference | * |
| Oklahoma Earthquake Catalog | * |
| Oklahoma Earthquake Catalogue | * |
| Old Egyptian Coal | * |
| One Embarcadero Center | * |
| Online an Electronic Column | * |
| Oracle Education Coordinator | * |
| Organisation for Economic Cooper | * |
| Organization for Economic Company | * |
| Organization for Energy Conserva | * |
| Organizational Effectiveness Centers | * |
| Outdoor Equipment Care | * |