| Acronym | Definition |
|---|
| ACTI➣Air Combat Tactics Instructor |
| ACTI➣Advanced Cleanup Technologies, Inc (Rancho Dominguez, CA) |
| ACTI➣Advanced Cell Technology Inc. |
| ACTI➣Advanced Computational Technology Initiative |
| ACTI➣Advisory Committee on Technology Innovation |
| ACTI➣Alfred C. Toepfer International GmbH (Germany) |
| ACTI➣Aircrew Coordination Training Instructor |