| Part of speech | common noun |
|---|---|
| Hyphenation | kaŭz·o |
| Singular | Plural | |
|---|---|---|
| Nominative | kaŭzo | kaŭzoj |
| Accusative | kaŭzon | kaŭzojn |
| Afrikaans | oorsaak; rede |
|---|---|
| Catalan | causa |
| Czech | příčina |
| Danish | årsag |
| Dutch | oorzaak |
| English | cause; reason |
| Faeroese | orsøk |
| Finnish | syy |
| French | cause |
| German | Anlaß; Grund; Ursache; Veranlassung |
| Greek | αιτία; αίτιο |
| Greek (Old Greek) | αἰτία |
| Icelandic | orsök |
| Italian | causa |
| Latin | causa |
| Luxemburgish | Grond |
| Portuguese | causa; móvel |
| Romanian | causă |
| Saterland Frisian | Anlas; Feranlassenge; Gruund; Uurseeke |
| Spanish | causa |
| Swedish | orsak |
| Thai | เหตุ |
| West Frisian | oarsaak |