| Part of speech | common noun |
|---|---|
| Gender | common |
| Singular | Plural | |||
|---|---|---|---|---|
| Indefinite | Definite | Indefinite | Definite | |
| Nominative | dag | dagen | dage | dagene |
| Genitive | dags | dagens | dages | dagenes |
| Catalan | dia |
|---|---|
| Dutch | dag |
| English | day |
| Esperanto | tago |
| Finnish | päivä |
| French | journée |
| German | Tag |
| Italian | dí |
| Jamaican Patois | die |
| Low German | dag |
| Papiamento | dia |
| Saterland Frisian | Dai |
| Spanish | día |
| Swedish | dag |
| West Frisian | dei |