| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | reno | renoj |
| Accusative | renon | renojn |
| Catalan | ronyó |
|---|---|
| Dutch | nier |
| English | kidney |
| Faeroese | nýra |
| French | rein |
| German | Niere |
| Hungarian | vese |
| Icelandic | nýra |
| Italian | rene |
| Kabylian | tigeẓẓelt |
| Latin | ren |
| Norwegian | nyre |
| Papiamento | nir; riñon |
| Portuguese | rim |
| Romanian | rinichi |
| Russian | почка |
| Saterland Frisian | Njuure |
| Scots | neer |
| Spanish | riñón |
| Sranan | niri |
| Swedish | njure |
| Thai | ไต |
| Turkish | böbrek |