| bokmål | nob-000 |
| optimist | |
| català | cat-000 | optimista |
| čeština | ces-000 | optimista |
| dansk | dan-000 | optimist |
| Deutsch | deu-000 | Optimist |
| Deutsch | deu-000 | Optimistin |
| ελληνικά | ell-000 | αισιόδοξος |
| English | eng-000 | optimist |
| Esperanto | epo-000 | optimisto |
| suomi | fin-000 | optimisti |
| français | fra-000 | optimiste |
| Srpskohrvatski | hbs-001 | optìmist |
| עברית | heb-000 | אופטימי |
| עברית | heb-000 | אופטימיסט |
| արևելահայերեն | hye-000 | լավատես |
| italiano | ita-000 | ottimista |
| 日本語 | jpn-000 | 楽観主義者 |
| Nederlands | nld-000 | optimist |
| nynorsk | nno-000 | optimist |
| polski | pol-000 | optymista |
| polski | pol-000 | optymistka |
| português | por-000 | otimista |
| русский | rus-000 | оптими́ст |
| русский | rus-000 | оптими́стка |
| davvisámegiella | sme-000 | optimista |
| español | spa-000 | optimista |
| svenska | swe-000 | optimist |
| Türkçe | tur-000 | iyimser |
| Türkçe | tur-000 | nikbin |
| Türkçe | tur-000 | optimist |
| Volapük | vol-000 | frediman |
| Volapük | vol-000 | hifrediman |
| Volapük | vol-000 | jifrediman |