| aar | Afar |
| abk | Abkhazian |
| ace | Achinese |
| ach | Acoli |
| ada | Adangme |
| afa | Afro-Asiatic (Other) |
| afh | Afrihili |
| afr | Afrikaans |
| aka | Akan |
| akk | Akkadian |
| alb | Albanian |
| ale | Aleut |
| alg | Algonquian Languages |
| amh | Amharic |
| ang | English, Old (ca. 450-1100) |
| apa | Apache Languages |
| ara | Arabic |
| arc | Aramaic |
| arm | Armenian |
| arn | Araucanian |
| arp | Arapaho |
| art | Artificial (Other) |
| arw | Arawak |
| asm | Assamese |
| ath | Athapascan Languages |
| ava | Avaric |
| ave | Avestan |
| awa | Awadhi |
| aym | Aymara |
| aze | Azerbaijani |
| bad | Banda |
| bai | Bamileke Languages |
| bak | Bashkir |
| bal | Baluchi |
| bam | Bambara |
| ban | Balinese |
| baq | Basque |
| bas | Basa |
| bat | Baltic (Other) |
| bej | Beja |
| bel | Byelorussian |
| bem | Bemba |
| ben | Bengali |
| ber | Berber (Other) |
| bho | Bhojpuri |
| bih | Bihari |
| bik | Bikol |
| bin | Bini |
| bis | Bislama |
| bla | Siksika |
| bnt | Bantu (Other) |
| bod | Tibetan |
| bra | Braj |
| bre | Breton |
| bua | Buriat |
| bug | Buginese |
| bul | Bulgarian |
| bur | Burmese |
| cad | Caddo |
| cai | Central American Indian (Other) |
| car | Carib |
| cat | Catalan |
| cau | Caucasian (Other) |
| ceb | Cebuano |
| cel | Celtic (Other) |
| ces | Czech |
| cha | Chamorro |
| chb | Chibcha |
| che | Chechen |
| chg | Chagatai |
| chi | Chinese |
| chm | Mari |
| chn | Chinook jargon |
| cho | Choctaw |
| chr | Cherokee |
| chu | Church Slavic |
| chv | Chuvash |
| chy | Cheyenne |
| cop | Coptic |
| cor | Cornish |
| cos | Corsican |
| cpe | Creoles and Pidgins, English-based (Other) |
| cpf | Creoles and Pidgins, French-based (Other) |
| cpp | Creoles and Pidgins, Portuguese-based (Other) |
| cre | Cree |
| crp | Creoles and Pidgins (Other) |
| cus | Cushitic (Other) |
| cym | Welsh |
| cze | Czech |
| dak | Dakota |
| dan | Danish |
| del | Delaware |
| deu | German |
| din | Dinka |
| div | Divehi |
| doi | Dogri |
| dra | Dravidian (Other) |
| dua | Duala |
| dum | Dutch, Middle (ca. 1050-1350) |
| dut | Dutch |
| dyu | Dyula |
| dzo | Dzongkha |
| efi | Efik |
| egy | Egyptian (Ancient) |
| eka | Ekajuk |
| ell | Greek, Modern (1453-) |
| elx | Elamite |
| eng | English |
| enm | English, Middle (ca. 1100-1500) |
| epo | Esperanto |
| esk | Eskimo (Other) |
| esl | Spanish |
| est | Estonian |
| eus | Basque |
| ewe | Ewe |
| ewo | Ewondo |
| fan | Fang |
| fao | Faroese |
| fas | Persian |
| fat | Fanti |
| fij | Fijian |
| fin | Finnish |
| fiu | Finno-Ugrian (Other) |
| fon | Fon |
| fra | French |
| fre | French |
| frm | French, Middle (ca. 1400-1600) |
| fro | French, Old (842- ca. 1400) |
| fry | Frisian |
| ful | Fulah |
| gaa | Ga |
| gae | Gaelic (Scots) |
| gai | Irish |
| gay | Gayo |
| gdh | Gaelic (Scots) |
| gem | Germanic (Other) |
| geo | Georgian |
| ger | German |
| gez | Geez |
| gil | Gilbertese |
| glg | Gallegan |
| gmh | German, Middle High (ca. 1050-1500) |
| goh | German, Old High (ca. 750-1050) |
| gon | Gondi |
| got | Gothic |
| grb | Grebo |
| grc | Greek, Ancient (to 1453) |
| gre | Greek, Modern (1453-) |
| grn | Guarani |
| guj | Gujarati |
| hai | Haida |
| hau | Hausa |
| haw | Hawaiian |
| heb | Hebrew |
| her | Herero |
| hil | Hiligaynon |
| him | Himachali |
| hin | Hindi |
| hmo | Hiri Motu |
| hun | Hungarian |
| hup | Hupa |
| hye | Armenian |
| iba | Iban |
| ibo | Igbo |
| ice | Icelandic |
| ijo | Ijo |
| iku | Inuktitut |
| ilo | Iloko |
| ina | Interlingua (International Auxiliary language Association) |
| inc | Indic (Other) |
| ind | Indonesian |
| ine | Indo-European (Other) |
| ine | Interlingue |
| ipk | Inupiak |
| ira | Iranian (Other) |
| iri | Irish |
| iro | Iroquoian uages |
| isl | Icelandic |
| ita | Italian |
| jav | Javanese |
| jaw | Javanese |
| jpn | Japanese |
| jpr | Judeo-Persian |
| jrb | Judeo-Arabic |
| kaa | Kara-Kalpak |
| kab | Kabyle |
| kac | Kachin |
| kal | Greenlandic |
| kam | Kamba |
| kan | Kannada |
| kar | Karen |
| kas | Kashmiri |
| kat | Georgian |
| kau | Kanuri |
| kaw | Kawi |
| kaz | Kazakh |
| kha | Khasi |
| khi | Khoisan (Other) |
| khm | Khmer |
| kho | Khotanese |
| kik | Kikuyu |
| kin | Kinyarwanda |
| kir | Kirghiz |
| kok | Konkani |
| kom | Komi |
| kon | Kongo |
| kor | Korean |
| kpe | Kpelle |
| kro | Kru |
| kru | Kurukh |
| kua | Kuanyama |
| kum | Kumyk |
| kur | Kurdish |
| kus | Kusaie |
| kut | Kutenai |
| lad | Ladino |
| lah | Lahnda |
| lam | Lamba |
| lao | Lao |
| lat | Latin |
| lav | Latvian |
| lez | Lezghian |
| lin | Lingala |
| lit | Lithuanian |
| lol | Mongo |
| loz | Lozi |
| ltz | Letzeburgesch |
| lub | Luba-Katanga |
| lug | Ganda |
| lui | Luiseno |
| lun | Lunda |
| luo | Luo (Kenya and Tanzania) |
| mac | Macedonian |
| mad | Madurese |
| mag | Magahi |
| mah | Marshall |
| mai | Maithili |
| mak | Macedonian |
| mak | Makasar |
| mal | Malayalam |
| man | Mandingo |
| mao | Maori |
| map | Austronesian (Other) |
| mar | Marathi |
| mas | Masai |
| max | Manx |
| may | Malay |
| men | Mende |
| mga | Irish, Middle (900 - 1200) |
| mic | Micmac |
| min | Minangkabau |
| mis | Miscellaneous (Other) |
| mkh | Mon-Kmer (Other) |
| mlg | Malagasy |
| mlt | Maltese |
| mni | Manipuri |
| mno | Manobo Languages |
| moh | Mohawk |
| mol | Moldavian |
| mon | Mongolian |
| mos | Mossi |
| mri | Maori |
| msa | Malay |
| mul | Multiple Languages |
| mun | Munda Languages |
| mus | Creek |
| mwr | Marwari |
| mya | Burmese |
| myn | Mayan Languages |
| nah | Aztec |
| nai | North American Indian (Other) |
| nau | Nauru |
| nav | Navajo |
| nbl | Ndebele, South |
| nde | Ndebele, North |
| ndo | Ndongo |
| nep | Nepali |
| new | Newari |
| nic | Niger-Kordofanian (Other) |
| niu | Niuean |
| nla | Dutch |
| nno | Norwegian (Nynorsk) |
| non | Norse, Old |
| nor | Norwegian |
| nso | Sotho, Northern |
| nub | Nubian Languages |
| nya | Nyanja |
| nym | Nyamwezi |
| nyn | Nyankole |
| nyo | Nyoro |
| nzi | Nzima |
| oci | Langue d'Oc (post 1500) |
| oji | Ojibwa |
| ori | Oriya |
| orm | Oromo |
| osa | Osage |
| oss | Ossetic |
| ota | Turkish, Ottoman (1500 - 1928) |
| oto | Otomian Languages |
| paa | Papuan-Australian (Other) |
| pag | Pangasinan |
| pal | Pahlavi |
| pam | Pampanga |
| pan | Panjabi |
| pap | Papiamento |
| pau | Palauan |
| peo | Persian, Old (ca 600 - 400 B.C.) |
| per | Persian |
| phn | Phoenician |
| pli | Pali |
| pol | Polish |
| pon | Ponape |
| por | Portuguese |
| pra | Prakrit uages |
| pro | Provencal, Old (to 1500) |
| pus | Pushto |
| que | Quechua |
| raj | Rajasthani |
| rar | Rarotongan |
| roa | Romance (Other) |
| roh | Rhaeto-Romance |
| rom | Romany |
| ron | Romanian |
| rum | Romanian |
| run | Rundi |
| rus | Russian |
| sad | Sandawe |
| sag | Sango |
| sah | Yakut |
| sai | South American Indian (Other) |
| sal | Salishan Languages |
| sam | Samaritan Aramaic |
| san | Sanskrit |
| sco | Scots |
| scr | Serbo-Croatian |
| sel | Selkup |
| sem | Semitic (Other) |
| sga | Irish, Old (to 900) |
| shn | Shan |
| sid | Sidamo |
| sin | Singhalese |
| sio | Siouan Languages |
| sit | Sino-Tibetan (Other) |
| sla | Slavic (Other) |
| slk | Slovak |
| slo | Slovak |
| slv | Slovenian |
| smi | Sami Languages |
| smo | Samoan |
| sna | Shona |
| snd | Sindhi |
| sog | Sogdian |
| som | Somali |
| son | Songhai |
| sot | Sotho, Southern |
| spa | Spanish |
| sqi | Albanian |
| srd | Sardinian |
| srr | Serer |
| ssa | Nilo-Saharan (Other) |
| ssw | Siswant |
| ssw | Swazi |
| suk | Sukuma |
| sun | Sudanese |
| sus | Susu |
| sux | Sumerian |
| sve | Swedish |
| swa | Swahili |
| swe | Swedish |
| syr | Syriac |
| tah | Tahitian |
| tam | Tamil |
| tat | Tatar |
| tel | Telugu |
| tem | Timne |
| ter | Tereno |
| tgk | Tajik |
| tgl | Tagalog |
| tha | Thai |
| tib | Tibetan |
| tig | Tigre |
| tir | Tigrinya |
| tiv | Tivi |
| tli | Tlingit |
| tmh | Tamashek |
| tog | Tonga (Nyasa) |
| ton | Tonga (Tonga Islands) |
| tru | Truk |
| tsi | Tsimshian |
| tsn | Tswana |
| tso | Tsonga |
| tuk | Turkmen |
| tum | Tumbuka |
| tur | Turkish |
| tut | Altaic (Other) |
| twi | Twi |
| tyv | Tuvinian |
| uga | Ugaritic |
| uig | Uighur |
| 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 |
| wol | Wolof |
| xho | Xhosa |
| yao | Yao |
| yap | Yap |
| yid | Yiddish |
| yor | Yoruba |
| zap | Zapotec |
| zen | Zenaga |
| zha | Zhuang |
| zho | Chinese |
| zul | Zulu |
| zun | Zuni |
