| Part of speech | unknown part of speech |
|---|
| Nominative | teoremo |
|---|---|
| Accusative | teoremon |
| Catalan | teorema |
|---|---|
| Dutch | stelling; theorema |
| English | theorem |
| German | Theorem |
| Greek | θεώρημα |
| Italian | teorema |
| Portuguese | teorema |
| Saterland Frisian | Theorem |
| Spanish | teorema |
| Welsh | theorem |