| Abbreviation | Definition |
|---|---|
| ACHV | Air Conditioning Heating and Ventilation |
| ACI | A???hole Correlation Index |
| ACI | Accelerated Cost Improvement |
| ACI | Access Control Instruction |
| ACI | Accrued Coupon Income |
| ACI | Active Communications International |
| ACI | Administrative Concepts Inc |
| ACI | Advance Cargo Information |
| ACI | Affordable Comfort Inc |
| ACI | after clone induction |
| ACI | Ahole Correlation Index |
| ACI | A—hole Correlation Index |
| ACI | Air Control Industries |
| ACI | American Color Imaging |
| ACI | Anal Cranial Inversion |
| ACI | Apartment Consultants Inc |
| ACI | Application Centric Infrastructure |
| ACI | Application Communication Interface |
| ACI | Arch Coal Inc |
| ACI | Artificial Cartilage Implant |