| Interlingue | ile-000 |
| frustrar | |
| English | eng-000 | baffle |
| English | eng-000 | blight |
| English | eng-000 | defeat |
| English | eng-000 | discomfit |
| English | eng-000 | foil |
| English | eng-000 | frustrate |
| English | eng-000 | thwart |
| Interlingue | ile-000 | anullar |
| Interlingue | ile-000 | confuser |
| Interlingue | ile-000 | contrariar |
| Interlingue | ile-000 | embarassar |
| Interlingue | ile-000 | impedir |
| Interlingue | ile-000 | oposir |
| Interlingue | ile-000 | vanificar |
| Interlingue | ile-000 | vanitar |