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Gray : 513 phrases in 47 subjects |
| Agriculture | 30 |
| Anatomy | 1 |
| Botany | 6 |
| Chemistry | 14 |
| Coal | 1 |
| Communications | 6 |
| Cultural studies | 1 |
| Earth sciences | 8 |
| Ecology | 1 |
| Economics | 2 |
| Electronics | 8 |
| Entomology | 18 |
| Environment | 12 |
| Finances | 5 |
| Fish farming pisciculture | 48 |
| Food industry | 3 |
| General | 23 |
| Health care | 6 |
| Ichthyology | 9 |
| Industry | 36 |
| Information technology | 12 |
| International Monetary Fund | 14 |
| Law | 1 |
| Life sciences | 22 |
| Lighting other than cinema | 2 |
| Mammals | 2 |
| Materials science | 1 |
| Measuring instruments | 1 |
| Medical | 58 |
| Metallurgy | 9 |
| Meteorology | 1 |
| Microbiology | 1 |
| Natural resourses and wildlife conservation | 51 |
| Natural sciences | 48 |
| Nuclear physics | 1 |
| Packaging | 5 |
| Pathology | 1 |
| Pest control | 7 |
| Radio | 4 |
| Remote sensing | 2 |
| Soil science | 13 |
| Statistics | 1 |
| Technology | 5 |
| Textile industry | 4 |
| United Nations | 2 |
| Video recording | 5 |
| Waste management | 2 |