| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | bastiono | bastionoj |
| Accusative | bastionon | bastionojn |
| Dutch | bastion; bolwerk; rondeel |
|---|---|
| English | bastion |
| French | bastion |
| German | Bastei; Bastion; Bollwerk; Hochburg |
| Hungarian | bástya |
| Italian | baluardo; bastione |
| Portuguese | baluarte; bastião |
| Russian | бастион |
| Saterland Frisian | Bastion; Bolwierk |
| Spanish | baluarte; bastión |