 |
| blackest: 2626 phrases in 185 subjects |
| Accounting | 2 |
| Advertising | 2 |
| Agriculture | 40 |
| Agrochemistry | 5 |
| Aluminium industry | 1 |
| American usage, not spelling | 18 |
| Amphibians and reptiles | 28 |
| Analytical chemistry | 5 |
| Animal husbandry | 8 |
| Archaeology | 1 |
| Architecture | 1 |
| Armored vehicles | 2 |
| Art | 1 |
| Artillery | 1 |
| Astronautics | 11 |
| Astronomy | 2 |
| Australian | 19 |
| Automated equipment | 2 |
| Automobiles | 13 |
| Aviation | 8 |
| Aviation medicine | 1 |
| Banking | 2 |
| Biology | 299 |
| Biotechnology | 2 |
| Botany | 48 |
| Brewery | 3 |
| Bridge construction | 1 |
| Business | 5 |
| Canada | 2 |
| Cartography | 13 |
| Caspian | 3 |
| Cement | 1 |
| Chemistry | 17 |
| Chess | 17 |
| Christianity | 1 |
| Cinematography | 3 |
| Clothing | 1 |
| Combustion gas turbines | 1 |
| Communications | 3 |
| Computers | 9 |
| Computing slang | 1 |
| Construction | 19 |
| Cooking | 9 |
| Cryptography | 1 |
| Dentistry | 2 |
| Dialectal | 9 |
| Diplomacy | 2 |
| Dog breeding | 3 |
| Drilling | 1 |
| Drug-related slang | 29 |
| Ecology | 20 |
| Economy | 6 |
| Education | 1 |
| Electrochemistry | 3 |
| Electronics | 23 |
| Energy industry | 7 |
| Entomology | 16 |
| Environment | 1 |
| Esoterics | 1 |
| Ethnology | 2 |
| European Bank for Reconstruction and Development | 1 |
| Facilities | 2 |
| Figurative | 6 |
| Figure of speech | 2 |
| Finances | 1 |
| Firefighting and fire-control systems | 1 |
| Fish farming pisciculture | 22 |
| Fishery fishing industry | 1 |
| Folklore | 1 |
| Food industry | 9 |
| Foreign affairs | 1 |
| Foreign exchange market | 1 |
| Forestry | 25 |
| General | 334 |
| Geography | 5 |
| Geology | 50 |
| Gold mining | 1 |
| High energy physics | 2 |
| Historical | 6 |
| Horticulture | 1 |
| Household appliances | 4 |
| Hydrobiology | 6 |
| Hydrology | 1 |
| Ichthyology | 262 |
| Idiomatic | 10 |
| Informal | 19 |
| Information technology | 10 |
| Intelligence and security services | 3 |
| International Monetary Fund | 1 |
| Invective | 1 |
| Jargon | 5 |
| Judo | 3 |
| Karachaganak | 1 |
| Law | 2 |
| Leather | 5 |
| Librarianship | 17 |
| Literature | 2 |
| Makarov | 95 |
| Mammals | 45 |
| Maritime law & Law of the Sea | 3 |
| Marketing | 1 |
| Mass media | 44 |
| Materials science | 1 |
| Mathematics | 1 |
| Meat processing | 2 |
| Mechanic engineering | 2 |
| Mechanics | 1 |
| Medical | 28 |
| Medical appliances | 4 |
| Metallurgy | 11 |
| Meteorology | 3 |
| Microelectronics | 1 |
| Microsoft | 1 |
| Military | 27 |
| Military aviation | 1 |
| Military lingo | 7 |
| Mineralogy | 3 |
| Mining | 10 |
| Missiles | 1 |
| Names and surnames | 1 |
| Nanotechnology | 2 |
| Nautical | 11 |
| Navigation | 4 |
| Neologism | 2 |
| Obsolete / dated | 20 |
| Occupational health & safety | 3 |
| Oceanography & oceanology | 4 |
| Oil / petroleum | 10 |
| Oil and gas | 2 |
| Oil and gas technology | 1 |
| Oil processing plants | 1 |
| Oilfields | 2 |
| Oils and lubricants | 1 |
| Ornithology | 366 |
| Paleontology | 1 |
| Pejorative | 1 |
| Perfume | 5 |
| Physics | 6 |
| Phytophathology | 6 |
| Politics | 3 |
| Polygraphy | 17 |
| Polymers | 20 |
| Production | 1 |
| Programming | 5 |
| Proper name | 1 |
| Pulp and paper industry | 5 |
| Quantum electronics | 4 |
| Quantum mechanics | 2 |
| Rail transport | 4 |
| Religion | 7 |
| Road traffic | 2 |
| Road works | 3 |
| Roll stock | 1 |
| Sakhalin | 2 |
| SAP | 1 |
| Saying | 1 |
| School | 2 |
| Security systems | 1 |
| Shipbuilding | 3 |
| Silicate industry | 4 |
| Slang | 16 |
| Soil science | 1 |
| Solar power | 1 |
| Sports | 5 |
| Statistics | 1 |
| Stock Exchange | 3 |
| Technology | 99 |
| Telecommunications | 7 |
| Television | 3 |
| Textile industry | 9 |
| Theatre | 2 |
| Thermal engineering | 2 |
| Trademark | 1 |
| Transport | 3 |
| Travel | 3 |
| Typography | 2 |
| Uncommon / rare | 2 |
| Vernacular language | 1 |
| Veterinary medicine | 4 |
| Vulgar | 7 |
| Watchmaking | 1 |
| Weapons and gunsmithing | 3 |
| Wood processing | 7 |
| Zoology | 30 |
| Радиоактивное излучение | 1 |