| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | filamento | filamentoj |
| Accusative | filamenton | filamentojn |
| Dutch | dun metaaldraad; filament; gloeidraad; helmdraad |
|---|---|
| English | filament |
| German | Glühfaden; Heizfaden; Staubfaden; Filament |
| Spanish | filamento |