| Part of speech | unknown part of speech |
|---|
| Nominative | unio |
|---|---|
| Accusative | union |
| Afrikaans | unie |
|---|---|
| Catalan | unió |
| Dutch | unie |
| English | union |
| Faeroese | felagsskapur |
| Finnish | unioni |
| Italian | unione |
| Latin | unio |
| Low German | uny |
| Luxemburgish | Unioun |
| Malay | uni |
| Norwegian | union |
| Papiamento | union |
| Polish | unia |
| Portuguese | união |
| Russian | союз |
| Scots | union |
| Spanish | unión |
| Swedish | union |
| Tagalog | unyón |
| West Frisian | uny |