| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | eĥo | eĥoj |
| Accusative | eĥon | eĥojn |
| Albanian | jehonë |
|---|---|
| Catalan | eco |
| Czech | echo; odezva; ohlas; ozvěna |
| Danish | ekko |
| Dutch | echo; nagalm; naklank; weerklank |
| English | echo |
| Faeroese | afturljóð; bergmál |
| French | écho; répercussion |
| German | Echo; Widerhall |
| Portuguese | eco |
| Saterland Frisian | Echo; Wierluud; Wierschal; Wierskal |
| Spanish | eco |
| Swedish | eko; genklang; genljud |