| Part of speech | common noun |
|---|---|
| Hyphenation | onkl·o |
| Singular | Plural | |
|---|---|---|
| Nominative | onklo | onkloj |
| Accusative | onklon | onklojn |
| Afrikaans | oom |
|---|---|
| Albanian | dajë |
| Catalan | oncle |
| Czech | strýček; strýc |
| Danish | farbror; morbror; onkel |
| Dutch | oom; nonkel; onkel |
| English | uncle; eme |
| English (Old English) | fædera |
| Faeroese | faðirbróðir; móðurbróðir |
| Finnish | setä |
| French | oncle |
| German | Onkel; Ohm; Oheim |
| Hawaiian | ʻanakala |
| Hungarian | nagybácsi |
| Icelandic | föðurbróðir; móðurbróðir |
| Italian | zio |
| Jamaican Patois | ongki |
| Latin | patruus |
| Norwegian | onkel |
| Papiamento | omo; tio |
| Polish | stryj; wujek |
| Portuguese | tio |
| Russian | дядя |
| Saterland Frisian | Oom; Unkel |
| Scots | eme |
| Spanish | tío |
| Sranan | omu |
| Swahili | baba mdogo; mjomba |
| Swedish | farbroder; farbror; morbroder; morbror |
| Thai | น้า |
| Welsh | ewythr |
| West Frisian | omke |
| Yiddish | פֿעטער |