| Umweltfaktor | environmental factor |
| Weltalter | eon |
| Übeltäter | evildoer |
| Inputfaktor | factor of production |
| Lorentzfaktor | Lorentz factor |
| Zweitakter | twin-stroke engine two-stroke engine |
| Umwelt | environment |
| Umweltaktivist | ecological activist environmental activist green activist |
| Umweltpolitik | environmental policy |
| Umweltrecht | environmental law |
| Umweltschutz | environmental protection ecology protection |
| Umweltschützer | environmentalist |
| Weltkarte | world map |
| Weltrekord | world record |
| Übeltat | malfeasance |
| Formfaktor | form factor |
| Semelfaktiv | semelfactive |
| semelfaktiv | semelfactive |
| Biofaktor | biofactor |
| Faktor | factor merchant |