| Name | Other Name | Family | Nativ Name | ISO6391 Code | ISO6392T Code | ISO6392B Code | ISO6393 Code | Notes |
|---|---|---|---|---|---|---|---|---|
| Nauru | Austronesian | Dorerin Naoero | na | nau | nau | nau | also known as Nauruan | |
| Estonian | Uralic | eesti; eesti keel | et | est | est | est + 2 | macrolanguage | |
| English | Indo-European | English | en | eng | eng | eng | ||
| Spanish | Castilian | Indo-European | Español | es | spa | spa | spa | |
| Esperanto | Constructed | Esperanto | eo | epo | epo | epo | constructed; initiated from L.L. Zamenhof; 1887 | |
| Basque | Language isolate | euskara; euskera | eu | eus | baq | eus | ||
| Ewe | Niger–Congo | Eʋegbe | ee | ewe | ewe | ewe | ||
| Tonga (Tonga Islands) | Austronesian | Faka Tonga | to | ton | ton | ton | ||
| Malagasy | Austronesian | fiteny malagasy | mg | mlg | mlg | mlg + 10 | macrolanguage | |
| Faroese | Indo-European | føroyskt | fo | fao | fao | fao |