| Abbreviation | Definition |
|---|---|
| HIVE | Higher Institute of Villainous Education |
| HL | HogwartsLive |
| HLC | Half Life Counterstrike |
| HLOF | Half-Life: Opposing Force |
| HLSA | Hyper-Light-Speed Antenna |
| HMD | Hardcore Monster Destroyer |
| HMS | Heroically Manned Starship |
| HNM | Highly Notorious Monster |
| HOH | Hero Of Hyrule |
| HOMER | Hydro Operating Micro-Electro Robot |
| HP | Harry Potter |
| HS | Hyper Shadow |
| HS | Hyper Speed |
| HSWW | Hogwarts School of Witchcraft and Wizardry |
| HT | Hyper Transport |
| HTS | Hyrule Town Square |
| HTT | Hyper Transport Technology |
| HVE | Helborne's Viral Enchantment |
| IA | Imperial Academy |
| IAA | Insurrectional Army of America |