| Quadrant | quadrant |
| Quadrat | square |
| Quadrat- | square |
| Quart | quart |
| Quarzit | quartzite |
| Squadrist | blackshirt |
| Quadratum | quadrate bone |
| Quadratur | quadrature |
| Quadriga | quadriga |
| Quant | quantum |
| Guadiana | Guadiana |
| Hydrant | hydrant fire hydrant fireplug |
| Adorant | orant |
| Garant | guarantee |
| Amarant | amaranth firefinch |
| Guarana | guarana |
| Guaraní | Guaraní guarani |
| Warrant | warrant |
| flagrant | flagrant |
| Radiant | radian radiant |