| polski | pol-000 |
| radykalizm lewicowy | |
| български | bul-000 | левицизъм |
| čeština | ces-000 | levicový extremismus |
| dansk | dan-000 | venstresocialisme |
| Deutsch | deu-000 | Linksradikalismus |
| eesti | ekk-000 | vasakpoolsus |
| ελληνικά | ell-000 | αριστερισμός |
| English | eng-000 | leftism |
| suomi | fin-000 | vasemmistolaisuus |
| français | fra-000 | gauchisme |
| hrvatski | hrv-000 | ljevičarstvo |
| magyar | hun-000 | baloldali radikalizmus |
| italiano | ita-000 | gauchisme |
| lietuvių | lit-000 | radikalusis kairumas |
| latviešu | lvs-000 | kreisums |
| Malti | mlt-000 | xellugiżmu |
| Nederlands | nld-000 | links radicalisme |
| português | por-000 | esquerdismo |
| română | ron-000 | radicalism de stânga |
| slovenčina | slk-000 | ľavicový extrémizmus |
| slovenščina | slv-000 | levičarstvo |
| español | spa-000 | izquierdismo |
| српски | srp-000 | левичарство |
| svenska | swe-000 | vänsterradikalism |