| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | diagonala | diagonalaj |
| Accusative | diagonalan | diagonalajn |
| Dutch | diagonaal; schuin |
|---|---|
| English | diagonal |
| German | diagonal; schräg |
| Greek | διαγώνιος |
| Papiamento | diagonal |
| Portuguese | diagonal; oblíquo; transversal |