 |
| bog: 194 phrases in 30 subjects |
| Agriculture | 29 |
| Agronomy | 2 |
| Amphibians and reptiles | 1 |
| Archaeology | 2 |
| Biology | 4 |
| Botany | 2 |
| British usage, not spelling | 1 |
| Chemistry | 1 |
| Construction | 7 |
| Earth sciences | 7 |
| Entomology | 2 |
| Environment | 16 |
| General | 27 |
| Geology | 1 |
| Geophysics | 3 |
| Informal | 1 |
| Life sciences | 20 |
| Mammals | 4 |
| Medical | 7 |
| Melioration | 3 |
| Metallurgy | 11 |
| Mining | 17 |
| Natural resourses and wildlife conservation | 8 |
| Natural sciences | 8 |
| Ornithology | 1 |
| Slang | 2 |
| Soil science | 1 |
| Technology | 1 |
| Transport | 3 |
| Zoology | 2 |