sort by Rank | Alpha
| Possible Meanings | Rank |
| President of the US | **** |
| Parliament of Uganda | **** |
| Prevalence of Undernutrition | *** |
| Profiles and Used | *** |
| Paediatric Oncology Unit | *** |
| Problems of the Unit | *** |
| Paradigm of Uncertainty | *** |
| Port Officers Union | *** |
| Power Outlet Unit | *** |
| peak oxygen uptake | ** |
| Preventive Odontology Unit | ** |
| Pulmonary Oncology Unit | ** |
| Partition of Unity | ** |
| Pit1-Oct1/2-Unc86 | ** |
| Physical Oceanography Unit | ** |
| Podanie O Urlop | ** |
| Program Organization Units | ** |
| Publicly Owned Utilities | ** |
| Partiya Osvityan Ukrainy | * |
| Programme Operations Unit | * |
| Pythagorean Olympic University | * |
| Program Organisation Units | * |
| Percent Over Undervalued | * |
| Professional Organized Union | * |
| Phoenix Okanagan University | * |
| Placement Of Underdrain | * |
| Placement Of Underdrains | * |
| Properties Of Uraninite | * |