| Terms for subject Abbreviation (890990 entries) |
| HD movie (A high definition optical disc format which uses a smaller focus blue-violet 405 nm laser allowing higher precision and storage density. A competitor to Blu-ray Disc) | HD film | |
| HD OBD-C | heavy duty on-board diagnostics | |
| HD OC | head office | |
| HD OFC | head office | |
| HD oil | heavy-duty oil | |
| HD oil | heavy duty oil | |
| Hd Qrs | headquarters | |
| HD radio | high-definition radio | |
| Hd Sd | hard sand | |
| HD tire | heavy duty tire | |
| HD truck | heavy-duty truck | |
| HD truck | heavy duty truck | |
| HD type | heavy-duty type | |
| HD type | heavy duty type | |
| HD tyre | heavy-duty tyre | |
| HD unit | hydrodynamic unit | |
| HD version | heavy-duty version | |
| HD version | heavy duty version | |
| HD VS | Hellenic Defense Vehicle Systems | |
| hd whl | hand wheel |