| Part of speech | common noun |
|---|---|
| Hyphenation | spektr·o |
| Singular | Plural | |
|---|---|---|
| Nominative | spektro | spektroj |
| Accusative | spektron | spektrojn |
| Afrikaans | spektrum |
|---|---|
| Czech | spektrum |
| Dutch | kleurenbeeld; spectrum |
| English | spectrum; spectre |
| German | Spektrum |
| Spanish | espectro |
| West Frisian | spektrum |