 |
| |||
| Danub | |||
| Danube (Danubius) | |||
| Danube: 75 phrases in 12 subjects |
| Environment | 15 |
| Finances | 1 |
| Fish farming pisciculture | 13 |
| General | 14 |
| Ichthyology | 9 |
| Law | 8 |
| Life sciences | 3 |
| Natural resourses and wildlife conservation | 1 |
| Natural sciences | 1 |
| Politics | 2 |
| Transport | 6 |
| United Nations | 2 |