| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | fibro | fibroj |
| Accusative | fibron | fibrojn |
| Dutch | vezel |
|---|---|
| English | fibre |
| Faeroese | tægr; trevja |
| Finnish | säie |
| German | Faser; Fiber |
| Latin | fibra |
| Portuguese | fibra; filamento |
| Saterland Frisian | Faser; Fiber; Träid |
| Spanish | fibra |
| Swedish | fiber; tåga |