| Abbreviation | Definition |
|---|---|
| AITU | Asociaci??n de Inspectores de Trabajo del Uruguay |
| AITU | Asociación de Ingenieros Tecnológicos del Uruguay |
| AITU | Asociación de Inspectores de Trabajo del Uruguay |
| AIU | Abort Interface Unit?? |
| AIU | Adrenal Insufficiency United |
| AIU | Akita International University |
| AIU | Allegheny Intermediate Unit |
| AIU | American |
| AIU | American International Urinalysis |
| AIU | Applicant Investigation Unit |
| AIU | Auxiliary Input Unit |
| AIUO | Accademia Internazionale Umanitaria Opere |
| AIV | Air Idle Valve |
| AIV | Aluminum Intensive Vechicle |
| AIV | Always In Violation |
| AIV | Associated Industries Of Vermont |
| AIV | Average Inventory Value |
| AIVIA | Advanced Intuitive And Versatile Interface Archetype |
| AIVP | Advertiser Identity Verification Program |
| AIVP | Anti Ice Valve Position |