| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | ekvatorialo | ekvatorialoj |
| Accusative | ekvatorialon | ekvatorialojn |
| Dutch | equatoriaal |
|---|---|
| English | equatorial |
| German | Äquatorial; Äquatorialinstrument; Refraktor |
| Portuguese | equatorial |
| Spanish | ecuatorial |