| Hauptachse | major axis |
| Hauptsache | main thing |
| Hauptfach | main subject major |
| Hauptschule | finished elementary school junior high school secondary modern school secondary school |
| Halbachse | semimajor axis |
| Hauptader | mother lode |
| Hauptprobe | dress rehearsal |
| Hauptsünde | deadly sin |
| Hausmacht | demesne |
| Häutchen | membrane |
| Hauptbuch | general ledger |
| Haupthaus | principal building |
| Hauptrolle | main role |
| Hauptschiff | nave |
| Hauptschnur | reef |
| Hauptseite | main page |
| Hauptspeise | main course main dish |
| Hausdach | rooftop |
| Hausdrache | shrew |
| Haustaube | domestic pigeon |