 |
| sky: 258 phrases in 33 subjects |
| Astronomy | 14 |
| Aviation | 12 |
| Chemistry | 2 |
| Communications | 1 |
| Construction | 3 |
| Earth sciences | 6 |
| Economy | 1 |
| Electronics | 16 |
| Environment | 6 |
| Figurative | 1 |
| Finances | 1 |
| Forestry | 3 |
| General | 72 |
| Hobbies and pastimes | 6 |
| Ichthyology | 1 |
| Industry | 2 |
| Information technology | 3 |
| Law | 1 |
| Life sciences | 29 |
| Lighting other than cinema | 6 |
| Literature | 6 |
| Marketing | 5 |
| Medical | 2 |
| Natural resourses and wildlife conservation | 2 |
| Natural sciences | 5 |
| Nuclear physics | 2 |
| Obsolete / dated | 1 |
| Ornithology | 12 |
| Paragliding | 1 |
| Politics | 1 |
| Social science | 1 |
| Technology | 4 |
| Transport | 30 |