| Afrikaans | een |
| Albanian | një |
| Amharic | ande |
| Arabic | Wahid |
| Armenian | Meg |
| Asturian | ún (m), una (f) |
| Azerbaijani | - Bir |
| Basque | bat |
| Bengali | Ayak |
| Bosnian | jedan |
| Breton | unan |
| Bulgarian | edno |
| Cantonese | yat |
| Catalan | u / un (m), una (f) |
| Chipewyan | Eentlahghey |
| Cornish | onan (m) Unn (f) |
| Creole | En |
| Croatian | jeden |
| Czech | jedna |
| Dagaare | Bongyeni / yenti |
| Danish | en |
| Dutch | een |
| English | one |
| Esperanto | unu |
| Estonian | üks |
| Eurish | una |
| Farsi | Yek |
| Finnish | yksi |
| French | un(e) |
| Frisian | ien |
| Galician | Um (m), Umha (f) - Un, Unha |
| Georgian | erti |
| German | Eins (ein,eine) |
| Greek | e'na |
| Gujarati | ek |
| Hawaiian | `ekahi |
| Hebrew | achat |
| Hindi | ek |
| Holooe | it, chít |
| Hungarian | egy |
| Icelandic | einn |
| Ido | un |
| Indonesian | satu |
| Interlingua | un |
| Irish | aon |
| Italian | uno |
| Japanese | ichi |
| Korean | Il |
| Latin | unus |
| Latvian | viens |
| Lithuanian | vienas |
| Luganda | emu |
| Malaysian | satu |
| Mandarin | yi-. |
| Marshallese | juon |
| Mazahua | náha |
| Norwegian | en |
| Occitan | un, una (f) |
| Polish | jeden |
| Portuguese | um, uma |
| Brazilian Portuguese | um, uma |
| Quechua | Huh |
| Romanian | unu (masculine), una (feminine) |
| Russian | odin |
| Serbian | jeden |
| Sesotho | Nngwe |
| Sinhala | Eka. |
| Slovak | jeden (m); jedna (f); jedno (n) |
| Slovenian | ena |
| Spanish | uno |
| Swahili | moja |
| Swedish | ett |
| Tagalog | Isa |
| Thai | neung |
| Tswana | ngwe |
| Turkish | bir |
| Ukrainian | odyn (m), odna (f) |
| Vietnamese | mô.t |
| Welsh | un |
| Wolof | bena |
| Xhosa | inye |
| Yiddish | eyns |
| Zulu | ukunye, kunye |
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