| Aquadest | distilled water |
| Aquarist | aquarist |
| Aquädukt | aqueduct |
| Aquarell | watercolour watercolor |
| Aquavit | aquavit |
| Squadrist | blackshirt |
| Quade | Quadi |
| Quader | cuboid rectangular cuboid rectangular parallelepiped |
| Quadrat | square |
| Aq. dest. | distilled water |
| Arbalest | arbalest |
| Aruliest | spangled kookaburra |
| Quest | quest |
| Aquapark | aquapark |
| Aquaristin | aquarist |
| aquatisch | aquatic |
| Äquativ | equative |
| Äquivalent | equivalent |
| äquivalent | equivalent |
| Aqualith | aqualite |