| aar | Afar |
| abk | Abkhazian |
| ace | Achinese |
| ach | Acoli |
| ada | Adangme |
| ady | Adyghe; Adygei |
| afa | Afro-Asiatic languages |
| afh | Afrihili |
| afr | Afrikaans |
| ain | Ainu |
| aka | Akan |
| akk | Akkadian |
| alb | Albanian |
| ale | Aleut |
| alg | Algonquian languages |
| alt | Southern Altai |
| amh | Amharic |
| ang | English, Old (ca.450-1100) |
| anp | Angika |
| apa | Apache languages |
| ara | Arabic |
| arc | Official Aramaic (700-300 BCE); Imperial Aramaic (700-300 BCE) |
| arg | Aragonese |
| arm | Armenian |
| arn | Mapudungun; Mapuche |
| arp | Arapaho |
| art | Artificial languages |
| arw | Arawak |
| asm | Assamese |
| ast | Asturian; Bable; Leonese; Asturleonese |
| ath | Athapascan languages |
| aus | Australian languages |
| ava | Avaric |
| ave | Avestan |
| awa | Awadhi |
| aym | Aymara |
| aze | Azerbaijani |
| bad | Banda languages |
| bai | Bamileke languages |
| bak | Bashkir |
| bal | Baluchi |
| bam | Bambara |
| ban | Balinese |
| baq | Basque |
| bas | Basa |
| bat | Baltic languages |
| bej | Beja; Bedawiyet |
| bel | Belarusian |
| bem | Bemba |
| ben | Bengali |
| ber | Berber languages |
| bho | Bhojpuri |
| bih | Bihari languages |
| bik | Bikol |
| bin | Bini; Edo |
| bis | Bislama |
| bla | Siksika |
| bnt | Bantu (Other) |
| bos | Bosnian |
| bra | Braj |
| bre | Breton |
| btk | Batak languages |
| bua | Buriat |
| bug | Buginese |
| bul | Bulgarian |
| bur | Burmese |
| byn | Blin; Bilin |
| cad | Caddo |
| cai | Central American Indian languages |
| car | Galibi Carib |
| cat | Catalan; Valencian |
| cau | Caucasian languages |
| ceb | Cebuano |
| cel | Celtic languages |
| cha | Chamorro |
| chb | Chibcha |
| che | Chechen |
| chg | Chagatai |
| chi | Chinese |
| chk | Chuukese |
| chm | Mari |
| chn | Chinook jargon |
| cho | Choctaw |
| chp | Chipewyan; Dene Suline |
| chr | Cherokee |
| chu | Church Slavic; Old Slavonic; Church Slavonic; Old Bulgarian; Old Church Slavonic |
| chv | Chuvash |
| chy | Cheyenne |
| cmc | Chamic languages |
| cop | Coptic |
| cor | Cornish |
| cos | Corsican |
| cpe | Creoles and pidgins, English based |
| cpf | Creoles and pidgins, French-based |
| cpp | Creoles and pidgins, Portuguese-based |
| cre | Cree |
| crh | Crimean Tatar; Crimean Turkish |
| crp | Creoles and pidgins |
| csb | Kashubian |
| cus | Cushitic languages |
| cze | Czech |
| dak | Dakota |
| dan | Danish |
| dar | Dargwa |
| day | Land Dayak languages |
| del | Delaware |
| den | Slave (Athapascan) |
| dgr | Dogrib |
| din | Dinka |
| div | Divehi; Dhivehi; Maldivian |
| doi | Dogri |
| dra | Dravidian languages |
| dsb | Lower Sorbian |
| dua | Duala |
| dum | Dutch, Middle (ca.1050-1350) |
| dut | Dutch; Flemish |
| dyu | Dyula |
| dzo | Dzongkha |
| efi | Efik |
| egy | Egyptian (Ancient) |
| eka | Ekajuk |
| elx | Elamite |
| eng | English |
| enm | English, Middle (1100-1500) |
| epo | Esperanto |
| est | Estonian |
| ewe | Ewe |
| ewo | Ewondo |
| fan | Fang |
| fao | Faroese |
| fat | Fanti |
| fij | Fijian |
| fil | Filipino; Pilipino |
| fin | Finnish |
| fiu | Finno-Ugrian languages |
| fon | Fon |
| fre | French |
| frm | French, Middle (ca.1400-1600) |
| fro | French, Old (842-ca.1400) |
| frr | Northern Frisian |
| frs | Eastern Frisian |
| fry | Western Frisian |
| ful | Fulah |
| fur | Friulian |
| gaa | Ga |
| gay | Gayo |
| gba | Gbaya |
| gem | Germanic languages |
| geo | Georgian |
| ger | German |
| gez | Geez |
| gil | Gilbertese |
| gla | Gaelic; Scottish Gaelic |
| gle | Irish |
| glg | Galician |
| glv | Manx |
| gmh | German, Middle High (ca.1050-1500) |
| goh | German, Old High (ca.750-1050) |
| gon | Gondi |
| gor | Gorontalo |
| got | Gothic |
| grb | Grebo |
| grc | Greek, Ancient (to 1453) |
| gre | Greek, Modern (1453-) |
| grn | Guarani |
| gsw | Swiss German; Alemannic; Alsatian |
| guj | Gujarati |
| gwi | Gwich'in |
| hai | Haida |
| hat | Haitian; Haitian Creole |
| hau | Hausa |
| haw | Hawaiian |
| heb | Hebrew |
| her | Herero |
| hil | Hiligaynon |
| him | Himachali languages; Western Pahari languages |
| hin | Hindi |
| hit | Hittite |
| hmn | Hmong; Mong |
| hmo | Hiri Motu |
| hrv | Croatian |
| hsb | Upper Sorbian |
| hun | Hungarian |
| hup | Hupa |
| iba | Iban |
| ibo | Igbo |
| ice | Icelandic |
| ido | Ido |
| iii | Sichuan Yi; Nuosu |
| ijo | Ijo languages |
| iku | Inuktitut |
| ile | Interlingue; Occidental |
| ilo | Iloko |
| ina | Interlingua (International Auxiliary Language Association) |
| inc | Indic languages |
| ind | Indonesian |
| ine | Indo-European languages |
| inh | Ingush |
| ipk | Inupiaq |
| ira | Iranian languages |
| iro | Iroquoian languages |
| ita | Italian |
| jav | Javanese |
| jbo | Lojban |
| jpn | Japanese |
| jpr | Judeo-Persian |
| jrb | Judeo-Arabic |
| kaa | Kara-Kalpak |
| kab | Kabyle |
| kac | Kachin; Jingpho |
| kal | Kalaallisut; Greenlandic |
| kam | Kamba |
| kan | Kannada |
| kar | Karen languages |
| kas | Kashmiri |
| kau | Kanuri |
| kaw | Kawi |
| kaz | Kazakh |
| kbd | Kabardian |
| kha | Khasi |
| khi | Khoisan languages |
| khm | Central Khmer |
| kho | Khotanese; Sakan |
| kik | Kikuyu; Gikuyu |
| kin | Kinyarwanda |
| kir | Kirghiz; Kyrgyz |
| kmb | Kimbundu |
| kok | Konkani |
| kom | Komi |
| kon | Kongo |
| kor | Korean |
| kos | Kosraean |
| kpe | Kpelle |
| krc | Karachay-Balkar |
| krl | Karelian |
| kro | Kru languages |
| kru | Kurukh |
| kua | Kuanyama; Kwanyama |
| kum | Kumyk |
| kur | Kurdish |
| kut | Kutenai |
| lad | Ladino |
| lah | Lahnda |
| lam | Lamba |
| lao | Lao |
| lat | Latin |
| lav | Latvian |
| lez | Lezghian |
| lim | Limburgan; Limburger; Limburgish |
| lin | Lingala |
| lit | Lithuanian |
| lol | Mongo |
| loz | Lozi |
| ltz | Luxembourgish; Letzeburgesch |
| lua | Luba-Lulua |
| lub | Luba-Katanga |
| lug | Ganda |
| lui | Luiseno |
| lun | Lunda |
| luo | Luo (Kenya and Tanzania) |
| lus | Lushai |
| mac | Macedonian |
| mad | Madurese |
| mag | Magahi |
| mah | Marshallese |
| mai | Maithili |
| mak | Makasar |
| mal | Malayalam |
| man | Mandingo |
| mao | Maori |
| map | Austronesian languages |
| mar | Marathi |
| mas | Masai |
| may | Malay |
| mdf | Moksha |
| mdr | Mandar |
| men | Mende |
| mga | Irish, Middle (900-1200) |
| mic | Mi'kmaq; Micmac |
| min | Minangkabau |
| mis | Uncoded languages |
| mkh | Mon-Khmer languages |
| mlg | Malagasy |
| mlt | Maltese |
| mnc | Manchu |
| mni | Manipuri |
| mno | Manobo languages |
| moh | Mohawk |
| mon | Mongolian |
| mos | Mossi |
| mul | Multiple languages |
| mun | Munda languages |
| mus | Creek |
| mwl | Mirandese |
| mwr | Marwari |
| myn | Mayan languages |
| myv | Erzya |
| nah | Nahuatl languages |
| nai | North American Indian languages |
| nap | Neapolitan |
| nau | Nauru |
| nav | Navajo; Navaho |
| nbl | Ndebele, South; South Ndebele |
| nde | Ndebele, North; North Ndebele |
| ndo | Ndonga |
| nds | Low German; Low Saxon; German, Low; Saxon, Low |
| nep | Nepali |
| new | Nepal Bhasa; Newari |
| nia | Nias |
| nic | Niger-Kordofanian languages |
| niu | Niuean |
| nno | Norwegian Nynorsk; Nynorsk, Norwegian |
| nob | Bokmål, Norwegian; Norwegian Bokmål |
| nog | Nogai |
| non | Norse, Old |
| nor | Norwegian |
| nqo | N'Ko |
| nso | Pedi; Sepedi; Northern Sotho |
| nub | Nubian languages |
| nwc | Classical Newari; Old Newari; Classical Nepal Bhasa |
| nya | Chichewa; Chewa; Nyanja |
| nym | Nyamwezi |
| nyn | Nyankole |
| nyo | Nyoro |
| nzi | Nzima |
| oci | Occitan (post 1500); Provençal |
| oji | Ojibwa |
| ori | Oriya |
| orm | Oromo |
| osa | Osage |
| oss | Ossetian; Ossetic |
| ota | Turkish, Ottoman (1500-1928) |
| oto | Otomian languages |
| paa | Papuan languages |
| pag | Pangasinan |
| pal | Pahlavi |
| pam | Pampanga; Kapampangan |
| pan | Panjabi; Punjabi |
| pap | Papiamento |
| pau | Palauan |
| peo | Persian, Old (ca.600-400 B.C.) |
| per | Persian |
| phi | Philippine languages |
| phn | Phoenician |
| pli | Pali |
| pol | Polish |
| pon | Pohnpeian |
| por | Portuguese |
| pra | Prakrit languages |
| pro | Provençal, Old (to 1500) |
| pus | Pushto; Pashto |
| que | Quechua |
| raj | Rajasthani |
| rap | Rapanui |
| rar | Rarotongan; Cook Islands Maori |
| roa | Romance languages |
| roh | Romansh |
| rom | Romany |
| rum | Romanian; Moldavian; Moldovan |
| run | Rundi |
| rup | Aromanian; Arumanian; Macedo-Romanian |
| rus | Russian |
| sad | Sandawe |
| sag | Sango |
| sah | Yakut |
| sai | South American Indian (Other) |
| sal | Salishan languages |
| sam | Samaritan Aramaic |
| san | Sanskrit |
| sas | Sasak |
| sat | Santali |
| scn | Sicilian |
| sco | Scots |
| sel | Selkup |
| sem | Semitic languages |
| sga | Irish, Old (to 900) |
| sgn | Sign Languages |
| shn | Shan |
| sid | Sidamo |
| sin | Sinhala; Sinhalese |
| sio | Siouan languages |
| sit | Sino-Tibetan languages |
| sla | Slavic languages |
| slo | Slovak |
| slv | Slovenian |
| sma | Southern Sami |
| sme | Northern Sami |
| smi | Sami languages |
| smj | Lule Sami |
| smn | Inari Sami |
| smo | Samoan |
| sms | Skolt Sami |
| sna | Shona |
| snd | Sindhi |
| snk | Soninke |
| sog | Sogdian |
| som | Somali |
| son | Songhai languages |
| sot | Sotho, Southern |
| spa | Spanish; Castilian |
| srd | Sardinian |
| srn | Sranan Tongo |
| srp | Serbian |
| srr | Serer |
| ssa | Nilo-Saharan languages |
| ssw | Swati |
| suk | Sukuma |
| sun | Sundanese |
| sus | Susu |
| sux | Sumerian |
| swa | Swahili |
| swe | Swedish |
| syc | Classical Syriac |
| syr | Syriac |
| tah | Tahitian |
| tai | Tai languages |
| tam | Tamil |
| tat | Tatar |
| tel | Telugu |
| tem | Timne |
| ter | Tereno |
| tet | Tetum |
| tgk | Tajik |
| tgl | Tagalog |
| tha | Thai |
| tib | Tibetan |
| tig | Tigre |
| tir | Tigrinya |
| tiv | Tiv |
| tkl | Tokelau |
| tlh | Klingon; tlhIngan-Hol |
| tli | Tlingit |
| tmh | Tamashek |
| tog | Tonga (Nyasa) |
| ton | Tonga (Tonga Islands) |
| tpi | Tok Pisin |
| tsi | Tsimshian |
| tsn | Tswana |
| tso | Tsonga |
| tuk | Turkmen |
| tum | Tumbuka |
| tup | Tupi languages |
| tur | Turkish |
| tut | Altaic languages |
| tvl | Tuvalu |
| twi | Twi |
| tyv | Tuvinian |
| udm | Udmurt |
| uga | Ugaritic |
| uig | Uighur; Uyghur |
| ukr | Ukrainian |
| umb | Umbundu |
| und | Undetermined |
| urd | Urdu |
| uzb | Uzbek |
| vai | Vai |
| ven | Venda |
| vie | Vietnamese |
| vol | Volapük |
| vot | Votic |
| wak | Wakashan languages |
| wal | Walamo |
| war | Waray |
| was | Washo |
| wel | Welsh |
| wen | Sorbian languages |
| wln | Walloon |
| wol | Wolof |
| xal | Kalmyk; Oirat |
| xho | Xhosa |
| yao | Yao |
| yap | Yapese |
| yid | Yiddish |
| yor | Yoruba |
| ypk | Yupik languages |
| zap | Zapotec |
| zbl | Blissymbols; Blissymbolics; Bliss |
| zen | Zenaga |
| zha | Zhuang; Chuang |
| znd | Zande languages |
| zul | Zulu |
| zun | Zuni |
| zxx | No linguistic content; Not applicable |
| zza | Zaza; Dimili; Dimli; Kirdki; Kirmanjki; Zazaki |
| bod | Tibetan |
| ces | Czech |
| cym | Welsh |
| deu | German |
| ell | Greek, Modern (1453-) |
| eus | Basque |
| fas | Persian |
| fra | French |
| hye | Armenian |
| isl | Icelandic |
| kat | Georgian |
| mkd | Macedonian |
| mri | Maori |
| msa | Malay |
| mya | Burmese |
| nld | Dutch; Flemish |
| ron | Romanian; Moldavian; Moldovan |
| slk | Slovak |
| sqi | Albanian |
| zho | Chinese |