| Auxin | auxin |
| Bauxit | bauxite |
| Taxin | taxine |
| Toxin | toxin |
| Zeuxis | Zeuxis |
| Exine | exine |
| Waxing | waxing |
| Axinit | axinite |
| Dioxin | dioxin |
| Orexin | orexin |
| Auxiliar | auxiliary auxiliary verb |
| auxiliar | auxiliary |
| Fauxpas | blunder faux-pas |
| luxieren | luxate |
| Anatoxin | anatoxin |
| Autotoxin | autotoxin |
| Auxiliare | auxiliary verb |
| Auxologie | auxology |
| Sexiness | sexiness |
| Aflatoxin | aflatoxin |