| Rank | Abbreviation | Meaning |
|---|
| ***** | ATLANTIC STANDARD TIME. | A Canadian time zone. Also called Provincial Standard Time.
| |
| ***** | ATLANTIC | Airborne Targeting Low Altitude Navigation Thermal Imaging and Cueing
| |
| **** | ATLANTIC | Airborne Targeting Low Altitude Navigation Thermal Imaging and Cuing
| |
| *** | ATLANTIC | Advanced Television at Low bitrates And Networked Transmission over Integrated Communication systems
| |
| *** | ATLANTIC | Air Atlantique
| |
| *** | ATLANTIC | Angina Treatments - Lasers and Normal Therapies in Comparison
| |
| ** | ATLANTIC | Angina Treatment, Lasers and Normal Therapy in Comparison
| |