| Doppelter | double |
| Doppelte | double |
| Doppelstern | binary star |
| doppelt | double |
| Doppel- | semi-detached |
| doppel- | double |
| Doppeldenk | doublethink |
| Doppelehe | bigamy |
| Doppelsieg | win-win |
| Doppeltüren | double doors |
| doppeln | double |
| Doppel | doubles |
| Doppeladler | double-headed eagle |
| Doppelbauer | doubled pawns |
| Doppelbett | double bed full-size bed king-size bed |
| Doppelkeks | sandwich cookie |
| Doppelmord | double murder |
| Doppelung | doubling |
| Koppler | coupling |
| Adoptierter | adoptee |