sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| International Activities Office | **** |
| International Affairs Organization | **** |
| International Amateur Open | **** |
| Immediately After Onset | *** |
| Internal Audit and Oversight | *** |
| Indiana Academy of Ophthalmology | *** |
| Input and Output | *** |
| International Academy of Osteopathy | *** |
| Independent Audit Office | *** |
| Impact Assessment Office | *** |
| Incoming and Outgoing | *** |
| Insurers Advisory Organization | *** |
| International Association of Orthodontists | *** |
| Institute of Assessing Officers | *** |
| Internet Application Object | *** |
| Internal Audit Office | *** |
| inspiratory airway obstruction | ** |
| intestinal arterial occlusion | ** |
| irreversible airflow obstruction | ** |
| Iota Alpha Omega | ** |
| Indus Asia Online | ** |
| Illinois Association of Ophthalmology | ** |
| International Aid for Ontology | ** |
| International Association of Orthodontics | ** |
| Institute of Applied Optics | ** |
| Isis Apophis and Osiris | ** |
| Individual Assistance Officer | ** |
| International Alphaville Organization | ** |
| Institutional Accreditation Office | ** |
| Integrity Assurance Officers | ** |
| Individual Artist of Oklahoma | ** |
| Iwi Aquaculture Organisation | ** |
| Indiana Academy of Opthalmology | ** |
| Iowa Academy of Ophthalmology | ** |
| Indiana Academy of Osteopathy | ** |
| Insurers Advisory Organisation | ** |
| internal abdominal oblique | ** |
| Islam in Africa Organisation | ** |
| Igreja Anglicana Ortodoxa | ** |
| Intake Assessment Officer | ** |
| International Allies Organization | ** |
| Information Assurance Officers | * |
| Insurance Advisory Organization | * |
| Initialisms and Abbreviations | * |
| Institute of Applied Ontology | * |
| Input Analysis Output | * |
| Information Alternatives and Opposition | * |
| Islam Academy Online | * |
| Iacchus Asi Orus | * |
| IFOAM Africa Office | * |
| Immigration Affairs Office | * |
| Indian Association of Orangeburg | * |
| International Astronomy Olympiads | * |
| Indian and Atlantic Oceans | * |
| Information Activities Officer | * |
| Instituto Argentino de Oceanografia | * |
| Instituto Argentine de Oceanograffa | * |
| Instituto Argentino de Oceanograffa | * |
| Insulae Americanae in Oceanography | * |
| International Amoco Operations | * |
| International Association for Ob | * |
| Intraseasonal Atmospheric Oscillation | * |