| Dreiblatt | trefoil |
| dreiblättrig | three-leaved trifoliate |
| Dreiklang | triad |
| Reibelaut | fricative |
| Kronblatt | petal |
| Efeublatt | ivy leaf |
| Einblatt | peace lily spath white adder's mouth |
| Keimblatt | cotyledon seed leaf |
| Kleeblatt | cloverleaf cloverleaf interchange |
| Teeblatt | tealeaf |
| Tragblatt | bract pherophyll |
| Weinblatt | vine leaf |
| Drehkraut | hartwort |
| Dreiheit | triplicity |
| drehbar | rotatable |
| Drehbank | lathe |
| Dreibein | tripod |
| Dreingabe | bonus |
| Dreipass | trefoil |
| Dreirad | tricycle |