| Abbreviation | Definition |
|---|---|
| ACWL | American Crime Writers League |
| ACWL | Arts Council of White Lake |
| ACWP | Actual Cost of Work Performanced |
| ACWP | Aid to Children Without Parents |
| ACWR | Acute Chronic Workload Ratio |
| ACWR | Acute To Chronic Workload Ratio |
| ACWR | Adaptive Combat Weapon Rifle |
| ACWR | African Centre for Water Research |
| ACWR | Apostolic Christian World Relief |
| ACWR | Archivists for Congregations of Women Religious |
| ACWR | Arts Council Windsor Region |
| ACWR | Australasian Centre for Wesleyan Research |
| ACWT | Aerobic circuit weight training |
| ACWT | After call work time |
| ACWT | AIDS Children World Tour |
| ACWT | Average Customer Wait Time |
| ACWW | Associated Country Women of the World |
| ACWWA | Arapahoe County Water and Wastewater Authority |
| ACWWA | Arapahoe County Water and Wastewater Authority's |
| ACWWA | Arapahoe County Water Wastewater Authority |