sort by Rank | Alpha
| Possible Meanings | Rank |
| Acta Instituti Romani Finlandiae | **** |
| Alterations in Respiratory Function | ** |
| Acute intrinsic renal failure | ** |
| alcohol-induced rosacea flushing | ** |
| anti-infectious resistance factors | ** |
| Adverse Incident Report Form | ** |
| Anti Imperialist Revolutionary Forum | ** |
| African Immigrant Refugee Foundation | ** |
| African Immigrants and Refugees Foundation | ** |
| Associazione Italiana Riflessologhi Federati | ** |
| Associazione Italiana Reporter Fotografi | ** |
| All India Railway Federation | ** |
| African Immigrant and Refugee Foundation | * |
| All India Railwaymen Federation | * |
| Aviation Insurance Revolving Fund | * |