| Hadiyya | hdy-000 | itʔ- |
| Kambata | ktb-000 | iːtʔ- |
| Gawwada—Dalpena | gwd-000 | itʔa |
| Trinitario | trn-000 | -itʔe |
| Bikol | bcl-000 | itʔít |
| Gawwada—Harso-Werize | gwd-005 | itʔo |
| Gawwada—Dobase | gwd-006 | itʔo |
| Hadiyya | hdy-000 | itʔo |
| Dawang | wab-001 | i tαrɪjʊː |
| Oron | ebg-000 | ìt́έ |
| Ekit | eke-000 | ìt́έ |
| Okobo | okb-000 | ìt́έ |
| Akpafu | akp-000 | ìtὲ |
| Ayu | ayu-000 | ìtεk shìrû |
| Hadza | hts-000 | itχ́ ameya |
| English | eng-000 | ITА |
| English | eng-000 | ITАR |
| русский | rus-000 | IT консультирование |
| 日本語 | jpn-000 | ITアウトソーシング |
| 日本語 | jpn-000 | ITサービスマネジメント |
| 普通话 | cmn-000 | IT人才 |
| 國語 | cmn-001 | IT人才 |
| 日本語 | jpn-000 | ｉｔ分裂構文 |
| 日本語 | jpn-000 | ｉｔ外置 |
| 國語 | cmn-001 | IT系統經紀師 |
| 國語 | cmn-001 | IT系統電子工 |
| 普通话 | cmn-000 | IT系统电子工 |
| 普通话 | cmn-000 | IT系统经纪师 |
| Proto-Malayo-Polynesian | poz-000 | *iu |
| Proto-Oceanic | pqe-004 | *iu |
| Lamma | lev-000 | -iu |
| la lojban. | jbo-000 | .iu |
| la lojban. | jbo-000 | .iʼu |
| English | eng-000 | I.U. |
| bokmål | nob-000 | I/U |
| luenga aragonesa | arg-000 | IU |
| català | cat-000 | IU |
| English | eng-000 | IU |
| Esperanto | epo-000 | IU |
| français | fra-000 | IU |
| galego | glg-000 | IU |
| italiano | ita-000 | IU |
| occitan | oci-000 | IU |
| português | por-000 | IU |
| português brasileiro | por-001 | IU |
| português europeu | por-002 | IU |
| español | spa-000 | IU |
| català | cat-000 | Iu |
| Esperanto | epo-000 | Iu |
| Duhlian ṭawng | lus-000 | Iu |
| español | spa-000 | Iu |
| Tâi-gí | nan-003 | Iŭ |
| Huli | hui-000 | i*u |
| Kuanua | ksd-000 | i-u |
| Tupinambá | tpn-000 | i-u |
| Chuka | cuh-000 | iU |
| Kĩkamba | kam-000 | iU |
| Kamba Kitui | kam-001 | iU |
| Mangareva | mrv-000 | i`u |
| Aln8ba8dwaw8gan | abe-000 | iu |
| Aneme Wake | aby-000 | iu |
| Anem | anz-000 | iu |
| Saʼa | apb-000 | iu |
| ISO 639-1 | art-004 | iu |
| IETF language tags | art-420 | iu |
| Pele-Ata | ata-000 | iu |
| Anuta | aud-000 | iu |
| Hata Batak | bbc-000 | iu |
| Bugotu | bgt-000 | iu |
| Tanga | bjp-000 | iu |
| Bilba | bpz-000 | iu |
| Garifuna | cab-000 | iu |
| Muisca | chb-000 | iu |
| kuSkonPxuaQ | cmn-041 | iu |
| lingua corsa | cos-000 | iu |
| Daga | dgz-000 | iu |
| Esperanto | epo-000 | iu |
| Baburiwa | ert-000 | iu |
| Fuyuge | fuy-000 | iu |
| Gàidhlig | gla-000 | iu |
| galego | glg-000 | iu |
| yn Ghaelg | glv-000 | iu |
| Sabu | hvn-000 | iu |
| Idi-Dibolug | idi-000 | iu |
| Loglan | jbo-001 | iu |
| Yey | jei-000 | iu |
| Nihongo | jpn-001 | iu |
| Kamba Kitui | kam-001 | iu |
| Kanum | kcd-000 | iu |
| Kis | kis-000 | iu |
| Agöb—Dabu | kit-000 | iu |
| Kawam-Kibuli | kit-002 | iu |
| Koromira | kqj-000 | iu |
| Raluana | ksd-001 | iu |
| Kairiru | kxa-000 | iu |
| Lingua Franca Nova | lfn-000 | iu |
| dhɑng djhiɛu xɑ̀n ngiǔ | ltc-002 | iu |
| Leti | lti-000 | iu |
| Kajin M̧ajeļ | mah-000 | iu |
| Tape | map-008 | iu |
| Mekeo | mek-000 | iu |
| Motu | meu-000 | iu |
| Kemandoga | mnz-000 | iu |
| Tâi-gí | nan-003 | iu |
| napulitano | nap-000 | iu |
| dorerin Naoero | nau-000 | iu |
| Ngad'a | nxg-000 | iu |
| provençau, nòrma mistralenca | oci-002 | iu |
| Iron ævzag | oss-003 | iu |
| Mari | paa-004 | iu |
| Noraia | paa-005 | iu |
| Agob-Bugi | paa-007 | iu |
| Mbayaka | paa-008 | iu |
| Ngamai | paa-009 | iu |
| Pijin | pis-000 | iu |
| Vaeakau-Taumako | piv-000 | iu |
| Pileni | piv-001 | iu |
| Inkawasi-Kañaris | quf-000 | iu |
| Rotuman | rtm-000 | iu |
| limba armãneascã | rup-000 | iu |
| Meruimenti | rwk-001 | iu |
| Merutig | rwk-002 | iu |
| Uchinaaguchi | ryu-000 | iu |
| Simbo | sbb-000 | iu |
| lingua siciliana | scn-000 | iu |
| palermitano | scn-001 | iu |
| Kơtua | sed-001 | iu |
| Simeulue | smr-000 | iu |
| Sardu logudoresu | src-000 | iu |
| Sirionó | srq-000 | iu |
| Suena | sue-000 | iu |
| Tetun-Los | tdt-001 | iu |
| lia-tetun | tet-000 | iu |
| Tharaka | thk-000 | iu |
| Tupí | tpw-000 | iu |
| Tembe | tqb-000 | iu |
| Taulil | tuh-000 | iu |
| Butam | tuh-001 | iu |
| Kambera | xbr-000 | iu |
| Lingua Franca Nova | lfn-000 | iu! |
| Chimbu | kue-000 | iu- |
| Kurunku | qwa-000 | iu- |
| hagˋfa | hak-004 | iuˊ |
| e˧mŋ˨˦ue˧ | nan-033 | iu˥ |
| tie˥tsiu˧ue˩ | nan-034 | iu˥ |
| tie˥tsiu˧ue˩ | nan-034 | iu˥˧ |
| e˧mŋ˨˦ue˧ | nan-033 | iu˥˩ |
| lan˦˥tsʰɔŋ˦˨ua˨˩ | gan-003 | iu˦˥ |
| lan˦˥tsʰɔŋ˦˨ua˨˩ | gan-003 | iu˦˨ |
| y˦tɕiu˦ɦo˨ | wuu-007 | iu˦˨ |
| kuSkonPxuaQ | cmn-041 | iu˧ |
| e˧mŋ˨˦ue˧ | nan-033 | iu˧ |
| tie˥tsiu˧ue˩ | nan-034 | iu˧ |
| tie˥tsiu˧ue˩ | nan-034 | iu˧˥ |
| kuSkonPxuaQ | cmn-041 | iu˨ |
| e˧mŋ˨˦ue˧ | nan-033 | iu˨˦ |
| lan˦˥tsʰɔŋ˦˨ua˨˩ | gan-003 | iu˨˩ |
| lan˦˥tsʰɔŋ˦˨ua˨˩ | gan-003 | iu˨˩˧ |
| e˧mŋ˨˦ue˧ | nan-033 | iu˩ |
| tie˥tsiu˧ue˩ | nan-034 | iu˩ |
| santostefanese | ita-002 | iu’ |
| dhɑng djhiɛu xɑ̀n ngiǔ | ltc-002 | iù |
| Tâi-gí | nan-003 | iù |
| lingua siciliana | scn-000 | iù |
| Grootfontein !Kung | ktz-002 | iú |
| Charrua | sai-003 | iú |
| e˧mŋ˨˦ue˧ | nan-033 | iũ˥˩ |
| e˧mŋ˨˦ue˧ | nan-033 | iũ˧ |
| e˧mŋ˨˦ue˧ | nan-033 | iũ˨˦ |
| tie˥tsiu˧ue˩ | nan-034 | iũ˨˩˧ |
| ʻōlelo Hawaiʻi | haw-000 | iū |
| Tâi-gí | nan-003 | iū |
| Tâi-gí | nan-003 | iŭ |
| dorerin Naoero | nau-000 | iů |
| dhɑng djhiɛu xɑ̀n ngiǔ | ltc-002 | iǔ |
| gagana faʻa Samoa | smo-000 | iʻu |
| Serua | srw-000 | iʼu |
| Sihan | snr-000 | iːu |
| Tübatulabal | tub-000 | i𝑢̈ |
| català | cat-000 | Ïu |
| Esperanto | epo-000 | Ïu |
| español | spa-000 | Ïu |
| Ifugaw | ifu-000 | íu |
| Türkçe | tur-000 | İ.Ü. |
| ʻōlelo Hawaiʻi | haw-000 | ʻiu |
| Wuming Variation | zyb-003 | ˀiu˥ |
| tiếng Việt | vie-000 | ỉu |
| Hagfa Pinyim | hak-002 | iu1 |
| iu1cieu1gho6 | wuu-080 | iu1cieu1gho6 |
| Numao | bwx-004 | iu₁=yi₃ |
| Jianʼou fangyan | mnp-003 | iu₂-œüŋ₄ |
| Hagfa Pinyim | hak-002 | iu3 |
| Hagfa Pinyim | hak-002 | iu5 |
| ajúmmááwí | acv-000 | iu7m |
| Furbish | art-275 | i-ua |
| Pele-Ata | ata-000 | iua |
| Bariai | bch-000 | iua |
| Daga | dgz-000 | iua |
| santostefanese | ita-002 | iua |
| Grass Koiari | kbk-000 | iua |
| Rapanui | rap-000 | iua |
| lingua rumantscha | roh-000 | iua |
| Meruimenti | rwk-001 | iua |
| Tupí | tpw-000 | iua |
| Bungu | wun-000 | iua |
| Wungu | wun-001 | iua |
| Cisalpine Gaulish | xcg-000 | iua |
| Galatian | xga-000 | iua |
| limba meglenoromană | ruq-000 | iu̯ă |
| Tâi-gí | nan-003 | iù-á |
| 台灣話 | nan-000 | iū-á |
| Tâi-gí | nan-003 | iū-á |
| Bân-lâm-gú | nan-005 | iū-á |
| Hupa | hup-000 | Î$ùÂ |
| Kipare | asa-000 | ìúà |
| yn Ghaelg | glv-000 | iuaagagh |
| yn Ghaelg | glv-000 | iuaagagh doo |
| yn Ghaelg | glv-000 | iuaagagh glass |
| Hupa | hup-000 | /Î$ù /aùtÂʼ /Ϋ |
| Bariai | bch-000 | iuad |
| Bariai | bch-000 | iuae |
| yn Ghaelg | glv-000 | iuagh |
| Tâi-gí | nan-003 | iú-ài |
| Tâi-gí | nan-003 | iŭ-ai |
| Tâi-gí | nan-003 | iú-ài ĕ |
| Onge | oon-000 | iuaiya |
| Esperanto | epo-000 | iu ajn |
| Esperanto | epo-000 | iuajn |
| Esperanto | epo-000 | iu alia |
| Nāhuatlahtōlli | nci-000 | iualia |
| Bariai | bch-000 | iualu |
| Esperanto | epo-000 | Iŭamizaŭa |
| Chambri | can-000 | iuan |
| català | cat-000 | iuan |
| galego | glg-000 | iuan |
| Lingua Franca Nova | lfn-000 | iuan |
| Nāhuatlahtōlli | nci-000 | iuan |
| galego | glg-000 | Iuán chinés |
| galego | glg-000 | iuán chinés |
| português | por-000 | iuane |
| Nāhuatlahtōlli | nci-000 | iuani |
| pʼurhépecha uantakua | tsz-000 | iuani |
| Nāhuatlahtōlli | nci-000 | iuanistli |
| galego | glg-000 | iuáns chineses |
| Kwamera | tnk-000 | iuan u miuan u |
| kriolu kabuverdianu | kea-000 | Iuan xines |
| català | cat-000 | iuan xinès |
| català | cat-000 | iuan xinés |
| català | cat-000 | iuan xinesos |
| Fuyuge | fuy-000 | iuara |
| Fuyuge | fuy-000 | iuara minda |
| Torau | ttu-000 | iuarina |
| Bariai | bch-000 | iuaro |
| Esperanto | epo-000 | Iŭate |
| Nāhuatlahtōlli | nci-000 | iuatik |
| Nāhuatlahtōlli | nci-000 | iuatilistli |
| Esperanto | epo-000 | iu aŭ alia |
| Kandas | kqw-000 | i uaŋon |
| Bariai | bch-000 | iub |
| Simeulue | smr-000 | iub |
| Tupinambá | tpn-000 | îub |
| latine | lat-000 | Iuba |
| Tâi-gí | nan-003 | iù-bah |
| latine | lat-000 | Iuba II |
| Gàidhlig | gla-000 | iubailidh |
| Tâi-gí | nan-003 | iŭ-ba̍k |
| bokmål | nob-000 | i ubalanse |
| català | cat-000 | Iubarta |
| català | cat-000 | iubarta |
| Wedau | wed-000 | iubauba |
| latine | lat-000 | Iubavocus |
| English | eng-000 | IUBC |
| Tâi-gí | nan-003 | iú-bĕng |
| Tâi-gí | nan-003 | iú-bĕng bŭ-si̍t |
| latine | lat-000 | iubeo |
| latine | lat-000 | iubeo iussi iussum |
| latine | lat-000 | iubere |
| latine | lat-000 | iubēre |
| Gaeilge | gle-000 | iubhaile |
| Gàidhlig | gla-000 | iubhar |
| Gàidhlig | gla-000 | iùbhrach |
| Tâi-gí | nan-003 | iu-bí |
| română | ron-000 | iubi |
| Tâi-gí | nan-003 | iù-biău |
| română | ron-000 | iubiiubesc |
| Tâi-gí | nan-003 | iŭ-bĭn |
| română | ron-000 | iubind |
| română | ron-000 | iubire |
| română | ron-000 | iubirea este oarbă |
| română | ron-000 | iubire frățească |
| română | ron-000 | iubit |
| română | ron-000 | iubită |
| română | ron-000 | iubite |
| română | ron-000 | iubițel |
| română | ron-000 | iubiți |
| română | ron-000 | iubito |