| interlingua | ina-000 |
| efficiente | |
| العربية | arb-000 | فاعل |
| العربية | arb-000 | فعال |
| Deutsch | deu-000 | wirksam |
| English | eng-000 | effective |
| English | eng-000 | effectual |
| English | eng-000 | efficacious |
| English | eng-000 | efficient |
| English | eng-000 | resultful |
| Esperanto | epo-000 | efika |
| français | fra-000 | effectif |
| interlingua | ina-000 | effective |
| interlingua | ina-000 | efficace |
| interlingua | ina-000 | operante |
| italiano | ita-000 | efficace |
| italiano | ita-000 | efficiente |
| polski | pol-000 | skuteczny |
| português | por-000 | eficiente |
| русский | rus-000 | эффективный |
| संस्कृतम् | san-000 | साधु |
| español | spa-000 | eficaz |
| ייִדיש | ydd-000 | עפֿעקטיוו |