| العربية | arb-000 |
| فَعَّال | |
| български | bul-000 | ефективен |
| català | cat-000 | eficaç |
| Deutsch | deu-000 | wirksam |
| English | eng-000 | effective |
| suomi | fin-000 | tehokas |
| français | fra-000 | efficace |
| Gàidhlig | gla-000 | èifeachdach |
| Srpskohrvatski | hbs-001 | efektivan |
| Srpskohrvatski | hbs-001 | učinkovit |
| magyar | hun-000 | hatásos |
| magyar | hun-000 | hatékony |
| italiano | ita-000 | efficace |
| latviešu | lvs-000 | iedarbīgs |
| reo Māori | mri-000 | pekepakihiwi |
| Nederlands | nld-000 | efficiënt |
| Nederlands | nld-000 | werkzaam |
| bokmål | nob-000 | virkningsfull |
| polski | pol-000 | efektywny |
| português | por-000 | efetivo |
| română | ron-000 | efectent |
| română | ron-000 | efectiv |
| română | ron-000 | eficient |
| русский | rus-000 | эффекти́вный |
| español | spa-000 | efectivo |
| español | spa-000 | eficaz |
| svenska | swe-000 | effektiv |
| Türkçe | tur-000 | nüfuzlu |
| Türkçe | tur-000 | tesirli |
| Türkçe | tur-000 | çarpıcı |