| Part of speech | common noun |
|---|---|
| Hyphenation | a·kor·di·on·o |
| Singular | Plural | |
|---|---|---|
| Nominative | akordiono | akordionoj |
| Accusative | akordionon | akordionojn |
| Catalan | acordió |
|---|---|
| Czech | harmonika |
| Danish | harmonika; trækharmonika |
| Dutch | accordeon |
| English | accordion; harmonica |
| Faeroese | harmonika |
| Finnish | harmonikka |
| French | accordéon |
| German | Ziehharmonika; Akkordeon |
| Greek | ακορντεόν |
| Hungarian | harmonika |
| Icelandic | dragspil; harmóníka |
| Italian | fisarmonica |
| Malay | harmonika |
| Norwegian | trekkspill |
| Papiamento | akordeon |
| Polish | harmonijka |
| Portuguese | acordeão; gaita; harmónica; sanfona |
| Romanian | armonică |
| Russian | гармонь |
| Saterland Frisian | Akkordeon; Kwätskeboode |
| Spanish | acordeón |
| Swahili | |
| Turkish | akordeon |
| West Frisian | akkordeon |