Synonyms: flugboato, hidroaeroplano
| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | hidroplano | hidroplanoj |
| Accusative | hidroplanon | hidroplanojn |
| Dutch | watervliegtuig |
|---|---|
| English | seaplane |
| French | hydravion |
| German | Wasserflugzeug; Wassergleiter |
| Spanish | hidroplano |
| Swedish | hydroplan |