| Abbreviation | Definition |
|---|---|
| 1X | 1XRTT (Single Carrier Radio Transmission Technology) |
| 1XRTT | Single Carrier Radio Transmission Technology |
| 5T | Technology, Timely, Teamwork,Transparency and Transformation. |
| a | Acceleration |
| AAACT | Accessibility Accommodation and Adaptive Computer Technology |
| AAACT | Accessibility Accommodations Adaptive Computer Technology |
| AaaS | Anything-as-a-Service |
| AAAT | Adams Advanced Aero Technology |
| AAAT | Army Advanced Aviation Technology |
| AACT | Academy of Arts Careers and Technology |
| AACT | Academy of Arts, Careers and Technology |
| AACT | Access Ability Communications Technology |
| AALT | Australian Audio & Lighting Technology |
| AAMI | Association for the Advancement of Medical Instrumentation |
| AAMT | Academy Of Applied Mathematics And Technology |
| AAOTA | Athenian Academy of Technology and the Arts |
| AAPT | Association of Anatomical Pathology Technology |
| AAS | Advanced Automation System |
| AASET | Ability and Achievement in Science Engineering and Technology |
| AAST | Academy for the Advancement of Science and Technology |