sort by Rank | Alpha
| Possible Meanings | Rank |
| Health Assessment and Care Plan | ** |
| Hazardous Area Classification Process | ** |
| Host Access Client Package | ** |
| Hampshire Association for Counselling and Psychotherapy | ** |
| HTTP AICC Communication Protocol | ** |
| Hypertext AICC Communication Protocol | * |
| Hospital Associate Cancer Program | * |
| Housing Authority of the City of Pocatello | * |
| Hackers Against Child Pornography | * |
| High Altitude Cor Pulmonale | * |
| HTML Astronomy Classroom Project | * |
| Height Adjustable Chest Pad | * |