Synonym: ett
| Part of speech | cardinal number |
|---|
| Afrikaans | een |
|---|---|
| Albanian | një |
| Catalan | un |
| Czech | jeden |
| Danish | en; et |
| Dutch | één |
| English | one |
| English (Old English) | an |
| Esperanto | unu |
| Faeroese | ein |
| Finnish | yksi |
| French | un; une |
| German | ein; eine |
| Greek | ένα; ένας; μία |
| Hawaiian | kahi |
| Hungarian | egy |
| Icelandic | ein; einn; eitt |
| Italian | un’; un; una; uno |
| Jamaican Patois | wan |
| Kabylian | yiwen |
| Latin | una; unum; unus |
| Low German | eyn; eyne |
| Luxemburgish | een; eent |
| Malay | satu; esa |
| Norwegian | en |
| Papiamento | un |
| Polish | jeden; pewien |
| Portuguese | um; uma |
| Romanian | una; unu |
| Russian | один; одна; одно |
| Saterland Frisian | aan; een |
| Scots | ane |
| Scottish Gaelic | aon |
| Spanish | un; una; uno |
| Sranan | wan |
| Swahili | moja |
| Tagalog | isá |
| Thai | หนึ่ง |
| Turkish | bir |
| Welsh | un |
| West Frisian | ien |
| Yiddish | אײן; אײנס |
