| Quadrizeps | quadriceps |
| Quadrieren | quadrature |
| quadrieren | square |
| Quadrupede | quadruped |
| Quadriga | quadriga |
| Quadrille | quadrille |
| Quadrivium | quadrivium |
| Trizeps | triceps |
| Quadratfuß | square foot |
| Quadriplegie | quadriplegia |
| Quadrupeder | quadruped |
| Quargel | Olomouc cheese |
| Quarzit | quartzite |
| Squadrist | blackshirt |
| Squadristin | blackshirt |
| Quaddel | welt |
| Quade | Quadi |
| Quader | cuboid rectangular cuboid rectangular parallelepiped |
| Quaderstein | ashlar square stone |
| Quadrant | quadrant |