| pro bono | pro bono |
| Prokyon | Procyon |
| Proband | experimentee |
| Proton | proton |
| pro Kopf | per capita |
| proben | rehearse |
| Probe- | tentative |
| probe- | shakedown |
| Pronaos | pronaos |
| Pronoia | pronoia |
| Propanol | propanol |
| Propanon | acetone |
| Propfan | propfan |
| Propin | propyne |
| Protzen | splurge |
| protzen | show off splurge |
| Provo | Provo |
| Provost | provost |
| pro rata | pro rata |
| Probe | rehearsal trial sample |