| Äquator | equator |
| Äquatorial | equatorial |
| äquatorial | equatorial |
| Äquativ | equative |
| äquatorwärts | equatorward |
| Quantor | quantifier |
| Quästor | quaestor |
| Autor | author literator |
| Aquapark | aquapark |
| Aquavit | aquavit |
| Aquifer | aquifer |
| Erdäquator | Earth’s equator Equator |
| äquivok | equivocal |
| Allquantor | universal quantification |
| Quader | cuboid rectangular cuboid rectangular parallelepiped |
| Quartär | Quaternary |
| Quasar | quasar |
| Quäker | Quaker |
| Squat | squat |
| Vanuatuer | Vanuatuan |