| Guardian | guardian |
| Guadiana | Guadiana |
| Guanidin | guanadine |
| Guanin | guanine |
| Guarana | guarana |
| Guaraní | Guaraní guarani |
| Gardist | guardsman |
| Cardigan | cardigan |
| Gardine | curtain |
| Sardin | Sardinian |
| Gordias | Gordias |
| Kurdin | Kurd Kurdish |
| Durian | durian |
| Guanabana | soursop |
| Guanylat | guanylate |
| Guanábana | soursop |
| Guarneri | Guarnerius |
| Quartil | quartile |
| Quarzit | quartzite |
| Quartal | quarter |