| New Zealand English | eng-010 |
| primary | |
| العربية | arb-000 | أساسي |
| PanLem | art-000 | pri |
| беларуская | bel-000 | галоўны |
| bosanski | bos-000 | glavni |
| български | bul-000 | главен |
| bălgarski ezik | bul-001 | gláven |
| català | cat-000 | principal |
| čeština | ces-000 | hlavní |
| ѩзыкъ словѣньскъ | chu-000 | вальнъ |
| Deutsch | deu-000 | erster |
| English | eng-000 | primary |
| 𐐀𐑍𐑊𐐮𐑇 | eng-006 | 𐐹𐑉𐐴𐑋𐐯𐑉𐐨 |
| Australian English | eng-009 | primary |
| Esperanto | epo-000 | ĉefa |
| euskara | eus-000 | aurreneko |
| suomi | fin-000 | ensisijainen |
| français | fra-000 | principal |
| Српскохрватски | hbs-000 | главни |
| Srpskohrvatski | hbs-001 | glavni |
| italiano | ita-000 | principale |
| la lojban. | jbo-000 | ralju |
| 日本語 | jpn-000 | 主 |
| Nihongo | jpn-001 | omo |
| にほんご | jpn-002 | おも |
| нихонго | jpn-153 | омо |
| македонски | mkd-000 | главен |
| bokmål | nob-000 | primær |
| polski | pol-000 | główny |
| português | por-000 | principal |
| português brasileiro | por-001 | principal |
| português europeu | por-002 | principal |
| русский | rus-000 | главный |
| slovenčina | slk-000 | hlavný |
| slovenščina | slv-000 | glavni |
| español | spa-000 | principal |
| српски | srp-000 | главни |
| srpski | srp-001 | glavni |
| Türkçe | tur-000 | birincil |
| українська | ukr-000 | головний |