| Protoneneinfang | proton capture |
| Neutroneneinfang | neutron capture |
| Elektroneneinfang | electron capture |
| Protonendonator | proton donor |
| Treppeneingang | stoop |
| Seiteneingang | side entrance |
| Prototyping | prototyping |
| Prophezeiung | prophecy |
| Protonenblocker | proton-pump inhibitor |
| Protonenmasse | proton mass |
| Protonentherapie | proton therapy |
| Ionenbindung | ionic bond |
| Nebeneingang | side entrance |
| Posteingang | inbox |
| Hintereingang | back entrance rear entrance |
| Probesingen | audition |
| Protagonistin | protagonist |
| Protektion | patronage |
| Protestantin | Protestant |
| Protzerei | splurge |