| Cymraeg | cym-000 |
| atsain | |
| asturianu | ast-000 | ecu |
| asturianu | ast-000 | repilu |
| brezhoneg | bre-000 | dasson |
| brezhoneg | bre-000 | heklev |
| čeština | ces-000 | ohlas |
| kaszëbsczi jãzëk | csb-000 | hërlëk |
| Cymraeg | cym-000 | adlais |
| Deutsch | deu-000 | Echo |
| English | eng-000 | echo |
| Esperanto | epo-000 | eĥo |
| euskara | eus-000 | oihartzun |
| français | fra-000 | écho |
| galego | glg-000 | eco |
| italiano | ita-000 | eco |
| Nederlands | nld-000 | geluidsweerkaatsing |
| Nederlands | nld-000 | nagalm |
| Nederlands | nld-000 | weergalm |
| Nederlands | nld-000 | weerklank |
| occitan | oci-000 | ecò |
| occitan | oci-000 | resson |
| polski | pol-000 | echo |
| português | por-000 | eco |
| español | spa-000 | eco |
| svenska | swe-000 | eko |