Synonym: ajuin
| Part of speech | common noun |
|---|---|
| Pronunciation | /œy̯̯/ |
| Hyphenation | ui |
| Gender | masculine |
| Plural | uien |
| Diminutive | |
|---|---|
| Singular | Plural |
| uitje | uitjes |
| Afrikaans | ui |
|---|---|
| Albanian | qepa; qepë |
| Catalan | ceba |
| Czech | cibule; cibule kuchyňská |
| Danish | løg; kepaløg |
| English | onion |
| Esperanto | cepo; cepobulbo |
| Faeroese | leykur |
| Finnish | sipuli; keltasipuli; kepasipuli; tavallinen sipuli |
| French | oignon |
| German | Zwiebel; Zwiebellauch; Bolle; Speisezwiebel; Küchenzwiebel; Gartenzwiebel; Sommerzwiebel; Hauszwiebel; Gemeine Zwiebel |
| Greek | κρεμμύδι |
| Hungarian | hagyma; vöröshagyma |
| Icelandic | laukur |
| Italian | cipolla |
| Jamaican Patois | uonian |
| Latin | bulbus; caepa; caepe |
| Luxemburgish | Ënn |
| Malay | bawang; bawang bombai |
| Norwegian | kepaløk; matløk; vanlig løk; løk |
| Papiamento | siboyo |
| Polish | cebula; cebula zwyczajna |
| Portuguese | cebola |
| Romanian | ceapă |
| Russian | луковица; лук; лук репчатый |
| Saterland Frisian | Siepel |
| Scots | ingan |
| Scottish Gaelic | uinnean |
| Spanish | cebolla |
| Sranan | ayun |
| Swahili | kitunguu |
| Swedish | lök; matlök |
| Tagalog | sibuyas; lasuná |
| Thai | หัวหอม; หอมใหญ่ |
| Turkish | soğan |
| Yiddish | ציבל |