| Proteom | proteome |
| Proteomik | proteomics |
| Prodrom | prodrome |
| Pronom | pronoun |
| Protegé | protected |
| Protein | protein |
| Protest | protest |
| Protium | protium |
| Proton | proton |
| proto- | proto- |
| Probe- | tentative |
| probe- | shakedown |
| Prokyon | Procyon |
| Prom | prom |
| Pronaos | pronaos |
| Protz | splurge boast |
| Protzen | splurge |
| protzen | show off splurge |
| Provo | Provo |
| Prozeß | trial |
| Prozess | process trial lawsuit litigation |