| Part of speech | cardinal number |
|---|---|
| Hyphenation | twaalf |
| Albanian | dymbëdhjetë |
|---|---|
| Catalan | dotze |
| Czech | dvanáct |
| Danish | tolv |
| Dutch | twaalf |
| English | twelve |
| English (Old English) | twelf |
| Esperanto | dek du |
| Finnish | kaksitoista |
| French | douze |
| German | zwölf |
| Greek | δώδεκα |
| Hungarian | tizenkettő |
| Icelandic | tólf |
| Italian | dodici |
| Jamaican Patois | twelb |
| Latin | duodecim |
| Low German | twölv |
| Luxemburgish | zwielef; zwanzeg |
| Norwegian | tolv |
| Papiamento | djesdos; diesdos |
| Portuguese | doze |
| Saterland Frisian | tweelich |
| Scots | twal |
| Spanish | doce |
| Sranan | twarfu |
| Swahili | kumi na mbili; kumi na -wili; thenashara |
| Swedish | tolv |
| Thai | สิบสอง |
| West Frisian | tolf; tolve |