| Part of speech | common noun |
|---|---|
| Gender | common |
| Singular | Plural | |||
|---|---|---|---|---|
| Indefinite | Definite | Indefinite | Definite | |
| Nominative | penna | pennan | pennor | pennorna |
| Genitive | pennas | pennans | pennors | pennornas |
| Afrikaans | pen |
|---|---|
| Catalan | ploma |
| Dutch | pen |
| English | pen |
| Esperanto | plumo |
| German | Feder; Schreibfeder |
| Italian | penna |
| Papiamento | pèn |
| Polish | pióro |
| Russian | перо |
| Sranan | pen |
| Swahili | kalamu |
| Thai | ปากกา |
| Welsh | ysgrifbin; pin |