| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | fortepiano | fortepianoj |
| Accusative | fortepianon | fortepianojn |
| Catalan | fortepiano |
|---|---|
| Dutch | vleugel; vleugelpiano |
| English | pianoforte; grand piano |
| German | Fortepiano; Flügel |
| Polish | fortepian |
| Saterland Frisian | Fortepiano; Klavier; Pianino |
| Spanish | piano de cola |