| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | cirko | cirkoj |
| Accusative | cirkon | cirkojn |
| Catalan | circ |
|---|---|
| Czech | cirkus |
| Danish | cirkus |
| Dutch | circus |
| English | circus |
| Finnish | sirkus |
| French | cirque |
| German | Zirkus; Talkessel; Talweitung |
| Greek | τσίρκο |
| Hungarian | cirkusz |
| Italian | circo |
| Papiamento | sirko |
| Portuguese | circo |
| Russian | цирк |
| Saterland Frisian | Zirkus |
| Spanish | circo |
| Swedish | cirkus |
| Tagalog | sirko |
| Turkish | sirk |
| Welsh | syrcas |
| West Frisian | hynstespul; sirkus |
| Yiddish | צירק |