| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | fajfanaso | fajfanasoj |
| Accusative | fajfanason | fajfanasojn |
| Catalan | ànec xiulador; piuló |
|---|---|
| Czech | hvízdák |
| Danish | pibeand |
| Dutch | smient |
| English | widgeon |
| Finnish | haapana |
| French | canard siffleur |
| German | Pfeifente |
| Greek | σφυριχτάρι |
| Italian | fischione |
| Norwegian | blesand; pipand |
| Polish | świstun |
| Portuguese | piadeira |
| Romanian | rață fluierătoare |
| Russian | свиязь |
| Spanish | silbón |
| Swedish | bläsand |
| Turkish | fiyu |
| Welsh | chwiwell |
| West Frisian | smjunt |