| Acronym | Definition |
|---|
| A&I | Analytics and Insights |
| A&I | Allergy and Immunology |
| A&I | Abstracting and Indexing |
| A&I | Archive and Install (Apple) |
| A&I | Arts and Industries |
| A&I | Audit and Inspection |
| A&I | Assembly and Installation |
| A&I | Acquisition and Installation |
| A&I | Analysis and Integration |
| A&I | Agriculture and Industrial |
| A&I | Alternative and Innovative (wastewater treatment) |
| A&I | Application and Installation |
| A&I | Accident and Indemnity (insurance) |
| A&I | Alteration and Improvement |
| A&I | Analysis and Inspection |
| A&I | Aged and Infirmed |
| A&I | Armed and Insane (TFC clan) |