 |
| hopper: 395 phrases in 35 subjects |
| Agriculture | 75 |
| Alternative dispute resolution | 1 |
| American usage, not spelling | 1 |
| Animal husbandry | 2 |
| Biology | 3 |
| British usage, not spelling | 1 |
| Chemistry | 16 |
| Coal | 5 |
| Construction | 27 |
| Cultural studies | 1 |
| Earth sciences | 1 |
| Electronics | 6 |
| Entomology | 20 |
| Environment | 4 |
| General | 12 |
| Hobbies and pastimes | 1 |
| Industry | 6 |
| Information technology | 7 |
| Life sciences | 1 |
| Materials science | 14 |
| Measuring instruments | 1 |
| Mechanic engineering | 33 |
| Medical | 5 |
| Metallurgy | 17 |
| Mining | 23 |
| Municipal planning | 2 |
| Natural resourses and wildlife conservation | 16 |
| Natural sciences | 4 |
| Nuclear physics | 4 |
| Ornithology | 1 |
| Packaging | 5 |
| Technology | 36 |
| Textile industry | 3 |
| Transport | 37 |
| Zoology | 4 |