sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Idaho Oregon Utah | **** |
| Investor Owned Utility | **** |
| Iowa Ornithologists Union | **** |
| Indoor Outdoor Unit | **** |
| Input Output Unit | *** |
| Intercultural Open University | *** |
| Iowa Outdoor Unlimited | *** |
| index of undernutrition | ** |
| index of uniformity | ** |
| integrated Ornstein-Uhlenbeck | ** |
| Investor Owned Utilites | ** |
| Investor Owner Utility | ** |
| Integrator Operable Unit | * |
| International Organizers United | * |
| Ivy and Oak University | * |
| Independent Operating Utility | * |