| Planetesimal | planetesimal |
| Planetarium | planetarium |
| Planetenring | planetary ring |
| Planetoid | planetoid |
| planetar | planetary |
| letztes Mal | last time |
| infinitesimal | infinitesimal |
| Planet X | Planet X |
| Planspiel | war game |
| Plappermaul | big mouth |
| Plastizität | plasticity |
| plattes Land | hinterland |
| Plagegeist | tormentor |
| Planenstoff | tarpaulin fabric |
| Planet | planet |
| Planetensystem | planetary system |
| Planetologie | planetology planetary science |
| Plasma | plasma |
| Plateau | plateau |
| Plattenbau | precast concrete slabs |