sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| HIV-1-associated dementia complex | ** |
| Housing Association and Development Corporation | ** |
| Highlands Aquaculture Development Centre | ** |
| Hartford Area Development Corporation | ** |
| Housing Association Development Corp | ** |
| Homebuilders Association of Douglas County | ** |
| Housing Authority of the District of Columbia | ** |
| Helen Arkell Dyslexia Center | ** |
| Houston Area Database Consortium | ** |
| Hempfield Area Democratic Committee | ** |
| HIV Associated Dementia Complex | * |
| Helen Arkell Dyslexia Centre | * |
| Huazheng Agricultural Development Company | * |
| Haley Aldrich Design Construction | * |
| Hayward Area Development Corporation | * |
| Herndon Area Dog Coalition | * |
| Hospital Affiliates Development Corporation | * |
| Haldimand Association for Developmentally Challenged | * |
| Holden Australian Drivers Championship | * |
| Honorary Aide De Camp | * |
| Honeywell Allied Data Communication | * |