| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | koralo | koraloj |
| Accusative | koralon | koralojn |
| Czech | korál |
|---|---|
| Danish | koral |
| Dutch | koraal |
| English | coral |
| French | corail |
| German | Koralle |
| Italian | corallo |
| Papiamento | koral |
| Spanish | coral |
| Swedish | korall |
| Turkish | mercan |
| Welsh | cwrel |