| Part of speech | common noun |
|---|---|
| Hyphenation | spi·on·o |
| Singular | Plural | |
|---|---|---|
| Nominative | spiono | spionoj |
| Accusative | spionon | spionojn |
| Catalan | espia |
|---|---|
| Czech | vyzvědač; špeh; špión |
| Danish | spion |
| Dutch | bespieder; pottekijker; spion; verspieder |
| English | spy |
| Faeroese | njósnari |
| French | espion |
| German | Späher; Spion |
| Italian | spia |
| Latin | otacustes |
| Papiamento | spion |
| Portuguese | espião |
| Saterland Frisian | Luurder; Spion |
| Spanish | espía |
| Swedish | kunskapare; snok; spejare; spion |
| Welsh | ysbïwr |