| Protegé | protected |
| Protein | protein |
| Proteom | proteome |
| Protest | protest |
| Probe- | tentative |
| probe- | shakedown |
| Protz | splurge boast |
| Protzen | splurge |
| protzen | show off splurge |
| Prozeß | trial |
| Prozess | process trial lawsuit litigation |
| protzig | garish cocky |
| prötteln | fettle |
| Probe | rehearsal trial sample |
| Projekt | project plan |
| Prolet | pleb |
| Prolog | prologue prolog |
| Propen | propene |
| Prothese | prosthesis denture |
| Protist | protist |