| Interlingue | ile-000 |
| cert | |
| English | eng-000 | certain |
| English | eng-000 | confident |
| English | eng-000 | decided |
| English | eng-000 | dependable |
| English | eng-000 | positive |
| English | eng-000 | sure |
| English | eng-000 | unmistakable |
| Interlingue | ile-000 | absolut |
| Interlingue | ile-000 | evident |
| Interlingue | ile-000 | fidibil |
| Interlingue | ile-000 | firm |
| Interlingue | ile-000 | manifest |
| Interlingue | ile-000 | positiv |
| Interlingue | ile-000 | pruvat |
| Interlingue | ile-000 | secur |