| Meaning | Category |
| Habitat Conservation Plan | Governmental->US Government |
| Hand Colored Print | Community->Media |
| Hangman Creek Project | Community |
| Hardened Cement Paste | Business->Products |
| Health Care Property Investments, Inc. | Business->NYSE Symbols |
| Healthcare Computing Publications | Community->Media |
| Hexagonal Close Packed | Academic & Science->Electronics |
| Honneur Count Points | Community->Sports |
| Honors Cooperative Program | Community->Educational |
| Human Communications Protocol | Internet |
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