| Part of speech | unknown part of speech |
|---|
| Nominative | sinestezio |
|---|---|
| Accusative | sinestezion |
| Catalan | sinestèsia |
|---|---|
| Czech | synestezie |
| Danish | sinæstesi; synæstesi |
| Dutch | synesthesie |
| English | synaesthesia |
| Finnish | synestesia |
| French | synesthésie |
| German | Synästhesie |
| Greek | συναισθησία |
| Hungarian | szinesztézia |
| Icelandic | samskynjun |
| Italian | sinestesia |
| Malay | sinestesia |
| Norwegian | synestesi |
| Polish | synestezja |
| Portuguese | sinestesia |
| Russian | синестезия |
| Spanish | sinestesia |
| Swedish | synestesi |
| Turkish | sinestezi |