| Planetoid | planetoid |
| Planet X | Planet X |
| Planet | planet |
| Plankton | plankton |
| planetar | planetary |
| Granitoid | granitoid |
| Plutoid | plutoid |
| Planarie | planarian |
| Plasmid | plasmid |
| Plato | Plato |
| Plazebo | placebo |
| Placebo | placebo |
| Plafond | ceiling |
| Plakette | badge sticker |
| Plane | tarpaulin tarp awning |
| Planegg | Planegg |
| Planen | planning scheduling |
| planen | plan contrive |
| Planenstoff | tarpaulin fabric |
| Planer | planner |