| polski | pol-000 |
| serio | |
| čeština | ces-000 | vážně |
| Deutsch | deu-000 | ernst |
| Deutsch | deu-000 | ernsthaft |
| English | eng-000 | gravely |
| English | eng-000 | really |
| English | eng-000 | serious |
| English | eng-000 | seriously |
| English | eng-000 | solemnly |
| English | eng-000 | wholeheartedly |
| Esperanto | epo-000 | efektive |
| Esperanto | epo-000 | grava |
| Esperanto | epo-000 | grave |
| Esperanto | epo-000 | serioze |
| italiano | ita-000 | seriamente |
| italiano | ita-000 | sul serio |
| latine | lat-000 | serio |
| polski | pol-000 | poważny |
| русский | rus-000 | серьезный |
| русский | rus-000 | серьёзный |
| español | spa-000 | de verdad |
| español | spa-000 | en serio |