sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Human Adaptation and Countermeasures Division | ** |
| Houston Association of Communication Disorders | * |
| Hierarchical Activity Cycle Diagrams | * |
| Housing Authority of the City of Dalton | * |
| Helicopter Assault Carrier Dock | * |
| Hermes Arts and Crafts Directory | * |
| Historical and Archaeological Compact Disk | * |