| Part of speech | common noun |
|---|---|
| Hyphenation | pi·an·o |
| Singular | Plural | |
|---|---|---|
| Nominative | piano | pianoj |
| Accusative | pianon | pianojn |
| Afrikaans | klavier; piano |
|---|---|
| Albanian | piano |
| Catalan | piano |
| Czech | klavír; piano |
| Dutch | klavier; piano |
| English | piano |
| Finnish | piano |
| French | piano |
| German | Klavier |
| Greek | πιάνο |
| Hungarian | zongora |
| Italian | pianoforte |
| Luxemburgish | Piano |
| Norwegian | piano |
| Papiamento | piano |
| Portuguese | piano |
| Saterland Frisian | Klavier |
| Spanish | piano |
| Swedish | piano |
| Tagalog | piyano |
| Turkish | piyano |
| Ukrainian | фортепіяно |
| Welsh | piano |
| West Frisian | piano |