sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Oleic acid | **** |
| Online Article | **** |
| Office Assistant | **** |
| Operations Administration | **** |
| Outdoor Air | **** |
| okadaic acid | *** |
| Operating Agreement | *** |
| Open Adoption | *** |
| Oregon Action | *** |
| other agency | *** |
| Obsidian Asylum | *** |
| Operational Analysis | *** |
| Office of Air | *** |
| Occupational Analysis | *** |
| operating administration | *** |
| operating administrations | *** |
| orthogonal arrays | *** |
| Optical amplifiers | *** |
| Operations Assistant | *** |
| Operations Analysis | *** |
| obligation authority | *** |
| Official Athletic | *** |
| Operating Agencies | *** |
| Operational Assessments | *** |
| Opportunity Assessment | *** |
| Ocean Acoustics | *** |
| oxygen analyzer | *** |
| Operation Agreement | *** |
| operating activity | *** |
| Operatic Arias | ** |
| oesophageal atresia | ** |
| open appendectomy | ** |
| Options Analysis | ** |
| guinea pigs sensitized with ovalbumin | ** |
| obstructive azoospermia | ** |
| open adrenalectomy | ** |
| ophthalmic artery | ** |
| oral appliance | ** |
| phosphatase inhibitor okadaic acid | ** |
| Ordinary Attempts | ** |
| Other Affiliate | ** |
| Opportunity Assessments | ** |
| Operations and Analysis | ** |
| Output Axis | ** |
| Operations Analysts | ** |
| actively sensitized to ovalbumin | ** |
| Overfire Air | ** |
| Operational Activity | * |
| operational architectures | * |
| rats sensitized to ovalbumin | * |
| Operational Aft | * |
| Operating Assembly | * |
| Orbit Adjust | * |
| Order Administration or Office Automation | * |
| Obscure Acronym | * |
| Office of Acquisition | * |
| Office of Administrator | * |
| Office of Advocacy | * |
| Office of Aeronautics | * |
| Office of the Associate | * |