| Part of speech | proper name |
|---|---|
| Hyphenation | Si·e·ra·le·on·o |
| Nominative | Sieraleono |
|---|---|
| Accusative | Sieraleonon |
| Catalan | Sierra Leone |
|---|---|
| Dutch | Sierra Leone |
| English | Sierra Leone |
| Finnish | Sierra Leone |
| French | Sierra Leone |
| German | Sierra Leone |
| Greek | Σιέρα Λεόνε |
| Icelandic | Síerra Leóne |
| Latin | Mons Leoninus |
| Norwegian | Sierra Leone |
| Russian | Сьерра‐Леоне |
| Spanish | Sierra Leona |
| Swedish | Sierra Leone |
| Ukrainian | Сьєрра‐Леоне |
| Welsh | Sierra Leone |