| Quadrille | quadrille |
| Quadrieren | quadrature |
| quadrieren | square |
| Quadriga | quadriga |
| Quadrillion | septillion |
| Qualle | jellyfish |
| Espadrille | espadrille |
| Marille | apricot |
| Quadrilliarde | octillion |
| Quadriplegie | quadriplegia |
| Quadrupede | quadruped |
| Quargel | Olomouc cheese |
| Quartil | quartile |
| Squadrist | blackshirt |
| Aquarell | watercolour watercolor |
| Quaddel | welt |
| Quade | Quadi |
| Quadrant | quadrant |
| Quadrat- | square |
| Quadrat | square |