| Diptoton | diptote |
| Diplotän | diplotene |
| Triptoton | triptote |
| Diptychon | diptych |
| Leptotän | leptotene |
| Isoton | isotone |
| Photon | photon |
| Proton | proton |
| dichotom | dichotomous dichotomic |
| Diptam | gas plant |
| Diphthong | diphthong |
| Diplom | certificate diploma |
| Diplomat | diplomat diplomatist |
| Diplomatin | diplomat |
| Diplont | diplont |
| Dipol | dipole |
| diploid | diploid |
| dippen | dip dip the flag |
| diptotisch | diptote |
| Polyptoton | polyptoton |