| English | eng-000 |
| constructed language | |
| Afrikaans | afr-000 | kunsmatige taal |
| العربية | arb-000 | لغة اصطناعية |
| العربية | arb-000 | لُغَة مُصْطَنَعَة |
| Llárriésh | art-258 | dórllevóda |
| беларуская | bel-000 | штучныя мовы |
| brezhoneg | bre-000 | yezh kalvezel |
| brezhoneg | bre-000 | yezh savet |
| brezhoneg | bre-000 | yezh savet a-ratozh |
| български | bul-000 | изкуствен език |
| català | cat-000 | llenguatge artificial |
| čeština | ces-000 | umělý jazyk |
| 普通话 | cmn-000 | 人工语言 |
| 普通话 | cmn-000 | 人造语言 |
| 國語 | cmn-001 | 人工語言 |
| 國語 | cmn-001 | 人造語言 |
| Hànyǔ | cmn-003 | renzao yuyan |
| Hànyǔ | cmn-003 | renzaoyu |
| Hànyǔ | cmn-003 | rén zào yǔ yan |
| dansk | dan-000 | kunstsprog |
| Deutsch | deu-000 | Kunstsprache |
| Deutsch | deu-000 | Plansprache |
| Deutsch | deu-000 | Sprache |
| Deutsch | deu-000 | konstruiert |
| Deutsch | deu-000 | konstruierte Sprache |
| Deutsch | deu-000 | künstliche Sprache |
| English | eng-000 | artificial language |
| English | eng-000 | computer language |
| English | eng-000 | conlang |
| English | eng-000 | formal language |
| English | eng-000 | planned language |
| Esperanto | epo-000 | konstruita lingvo |
| Esperanto | epo-000 | planlingvo |
| euskara | eus-000 | hizkuntza eraikia |
| suomi | fin-000 | keinokieli |
| suomi | fin-000 | keinotekoinen kieli |
| suomi | fin-000 | tekokieli |
| français | fra-000 | idéolangue |
| français | fra-000 | langage artificiel |
| français | fra-000 | langue artificielle |
| français | fra-000 | langue construite |
| Gaeilge | gle-000 | teanga chumtha |
| galego | glg-000 | ideolingua |
| עברית | heb-000 | שפה מתוכננת |
| hrvatski | hrv-000 | umjetni jezik |
| magyar | hun-000 | mesterséges nyelv |
| magyar | hun-000 | tervezett |
| interlingua | ina-000 | lingua artificial |
| interlingua | ina-000 | lingua construite |
| interlingua | ina-000 | lingua planate |
| bahasa Indonesia | ind-000 | bahasa buatan |
| bahasa Indonesia | ind-000 | conlang |
| íslenska | isl-000 | tilbúin tungumál |
| italiano | ita-000 | lingua artificiale |
| 日本語 | jpn-000 | 人工言語 |
| ქართული | kat-000 | ხელოვნური ენა |
| қазақ | kaz-000 | жасанды тіл |
| 한국어 | kor-000 | 인공어 |
| 韓國語 | kor-002 | 人工語 |
| latine | lat-000 | lingua artificialis |
| latine | lat-000 | lingua artificiosa |
| latine | lat-000 | lingua constructa |
| Lingua Franca Nova | lfn-000 | lingua construida |
| lietuvių | lit-000 | dirbtinė kalba |
| मराठी | mar-000 | कृत्रिमरित्या तयार केलेली भाषा |
| Malti | mlt-000 | lingwa artifiċjali |
| Nederlands | nld-000 | kunsttaal |
| nynorsk | nno-000 | kunstspråk |
| bokmål | nob-000 | kunstig språk |
| bokmål | nob-000 | kunstspråk |
| polski | pol-000 | język sztuczny |
| polski | pol-000 | języki sztuczne |
| português | por-000 | linguagem artificial |
| português | por-000 | língua artificial |
| română | ron-000 | limbaj artificial |
| română | ron-000 | limbă artificială |
| русский | rus-000 | иску́сственный язы́к |
| русский | rus-000 | искусственный язык |
| slovenčina | slk-000 | umelý jazyk |
| español | spa-000 | ideolengua |
| español | spa-000 | idioma artificial |
| español | spa-000 | lengua construida |
| español | spa-000 | lengua planificada |
| español | spa-000 | lenguaje artificial |
| српски | srp-000 | плански језик |
| srpski | srp-001 | planski jezik |
| svenska | swe-000 | artificiellt språk |
| svenska | swe-000 | konstgjorda språk |
| svenska | swe-000 | konstgjort språk |
| svenska | swe-000 | planspråk |
| Kiswahili | swh-000 | lugha iliyotengenezwa |
| Kiswahili | swh-000 | lugha ya kuundwa |
| తెలుగు | tel-000 | కృత్రిమ భాష |
| Türkçe | tur-000 | yapay dil |
| Türkçe | tur-000 | yapma dil |
| українська | ukr-000 | штучна мова |
| Volapük | vol-000 | mekavapük |
| Volapük | vol-000 | mekavik |
| Volapük | vol-000 | pük |