| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | iluzio | iluzioj |
| Accusative | iluzion | iluziojn |
| Danish | indbildning |
|---|---|
| Dutch | begoocheling; illusie; waan; zinsbedrog |
| English | illusion |
| Faeroese | gykl |
| French | illusion |
| German | Einbildung; Illusion; Täuschung; Wahn; Sinnetäuschung; Selbstäuschung; Wahnvorstellung; Wahnbild; Trugbild |
| Papiamento | ilushon |
| Portuguese | ilusão |
| Saterland Frisian | Ienbildenge; Illusion; Woan |
| Spanish | ilusión |
| Swedish | illusion |
| West Frisian | yllúzje |