| Doppeltüren | double doors |
| Doppelte | double |
| Doppelter | double |
| Doppelbürger | binational dual national |
| Doppelleben | double life |
| Doppelstern | binary star |
| Doppelagent | double agent |
| Doppeldenk | doublethink |
| Doppelehe | bigamy |
| Doppelsieg | win-win |
| Doppelsinn | ambiguity |
| Doppelvierer | four |
| doppeln | double |
| Doppeladler | double-headed eagle |
| Doppelbauer | doubled pawns |
| Doppelbogey | double bogey |
| Doppelkinn | double chin |
| Doppelkreuz | number sign double sharp |
| Doppelmoral | double standard |
| Doppelmord | double murder |