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Four : 4808 phrases in 268 subjects |
| Abbreviation | 2 |
| Accounting | 1 |
| Acoustics | 1 |
| Advertising | 9 |
| Aerohydrodynamics | 6 |
| Agriculture | 31 |
| Agronomy | 1 |
| Air defense | 8 |
| American usage, not spelling | 22 |
| Amphibians and reptiles | 10 |
| Anesthesiology | 2 |
| Animal husbandry | 4 |
| Antennas and waveguides | 24 |
| Archaeology | 4 |
| Archaic | 1 |
| Architecture | 13 |
| Armored vehicles | 23 |
| Art | 1 |
| Artillery | 4 |
| Astronautics | 41 |
| Astronomy | 4 |
| Audit | 2 |
| Automated equipment | 105 |
| Automobiles | 147 |
| Aviation | 60 |
| Banking | 7 |
| Basketball | 3 |
| Bible | 2 |
| Biology | 35 |
| Biotechnology | 2 |
| Black slang / African-American Vernacular | 1 |
| Blast-furnace practice | 1 |
| Botany | 44 |
| British usage, not spelling | 3 |
| Buddhism | 2 |
| Business | 15 |
| Canada | 2 |
| Canadian | 1 |
| Card games | 5 |
| Cardiology | 3 |
| Cartography | 7 |
| Cement | 1 |
| Chemistry | 5 |
| Chess | 43 |
| Christianity | 5 |
| Cinematography | 5 |
| Clerical | 1 |
| Cliche / convention | 6 |
| Clinical trial | 6 |
| Coal | 2 |
| Collective | 1 |
| Comics | 1 |
| Commerce | 2 |
| Communications | 10 |
| Computer networks | 6 |
| Computers | 21 |
| Construction | 79 |
| Contextual meaning | 1 |
| Cooking | 9 |
| Criminal law | 1 |
| Cultural studies | 5 |
| Dental implantology | 20 |
| Desmurgy | 3 |
| Diplomacy | 1 |
| Dog breeding | 7 |
| Dosimetry | 2 |
| Drawing | 1 |
| Drilling | 15 |
| Drives | 7 |
| Drug-related slang | 1 |
| Ecology | 1 |
| Economics | 13 |
| Education | 11 |
| Electrical engineering | 22 |
| Electricity | 3 |
| Electrochemistry | 6 |
| Electronics | 134 |
| Energy industry | 11 |
| Energy system | 1 |
| Entomology | 7 |
| Environment | 1 |
| Equestrian sports | 1 |
| Euphemistic | 4 |
| Explanatory translation | 5 |
| Finances | 13 |
| Firefighting and fire-control systems | 7 |
| Fish farming pisciculture | 2 |
| Food industry | 9 |
| Football | 7 |
| Footwear | 2 |
| Forestry | 16 |
| French | 1 |
| Furniture | 2 |
| Gardening | 2 |
| General | 784 |
| Genetics | 7 |
| Geology | 8 |
| Geometry | 1 |
| Geophysics | 18 |
| Gold mining | 1 |
| Grammar | 1 |
| Gymnastics | 2 |
| Gynecology | 1 |
| Gyroscopes | 2 |
| Hi-Fi | 2 |
| High energy physics | 10 |
| High jump | 1 |
| Historical | 23 |
| Horse breeding | 5 |
| Hotel industry | 1 |
| Household appliances | 1 |
| Human resources | 1 |
| Humorous / Jocular | 1 |
| Hydrology | 2 |
| Ichthyology | 51 |
| Idiomatic | 15 |
| Immunology | 5 |
| Industry | 2 |
| Informal | 61 |
| Information technology | 49 |
| International Monetary Fund | 7 |
| International relations | 1 |
| Internet | 1 |
| Ironical | 3 |
| Jet engines | 2 |
| Judo | 1 |
| Kayaking | 1 |
| Law | 23 |
| Leather | 9 |
| Librarianship | 13 |
| Linguistics | 4 |
| Literature | 8 |
| Loading equipment | 2 |
| Machine components | 1 |
| Machine tools | 2 |
| Machinery and mechanisms | 3 |
| Makarov | 433 |
| Mammals | 34 |
| Mass media | 38 |
| Materials science | 1 |
| Mathematics | 102 |
| Measuring instruments | 2 |
| Mechanic engineering | 31 |
| Mechanics | 8 |
| Medical | 37 |
| Medical appliances | 8 |
| Metallurgy | 41 |
| Meteorology | 1 |
| Metrology | 18 |
| Microelectronics | 6 |
| Microsoft | 3 |
| Military | 105 |
| Military lingo | 6 |
| Mining | 26 |
| Missiles | 6 |
| Modern use | 2 |
| Money & world curencies | 1 |
| Motorcycles | 2 |
| Music | 42 |
| Mythology | 2 |
| Name of organization | 1 |
| Nanotechnology | 12 |
| Nautical | 57 |
| Navigation | 4 |
| Neurology | 2 |
| Nuclear and fusion power | 1 |
| Nuclear physics | 6 |
| Obsolete / dated | 12 |
| Oceanography & oceanology | 2 |
| Oil / petroleum | 77 |
| Oil and gas | 24 |
| Oil and gas technology | 19 |
| Oil processing plants | 1 |
| Oilfields | 12 |
| Oils and lubricants | 5 |
| Ophthalmology | 2 |
| Optics branch of physics | 4 |
| Ornithology | 3 |
| Packaging | 2 |
| Patents | 1 |
| Perfume | 1 |
| Pharmacology | 1 |
| Philately / stamp collecting | 2 |
| Phonetics | 3 |
| Photography | 1 |
| Physics | 65 |
| Pipelines | 1 |
| Plastics | 3 |
| Police | 7 |
| Police jargon | 1 |
| Politics | 5 |
| Polygraphy | 61 |
| Polymers | 4 |
| Power system protection | 1 |
| Production | 2 |
| Professional jargon | 1 |
| Programming | 23 |
| Proverb | 26 |
| Public utilities | 2 |
| Publishing | 1 |
| Pulp and paper industry | 3 |
| Pumps | 2 |
| Quality control and standards | 1 |
| Quantum electronics | 3 |
| Quantum mechanics | 1 |
| Radiation | 23 |
| Radio | 3 |
| Radioengineering | 10 |
| Radiolocation | 2 |
| Radiology | 1 |
| Rail transport | 18 |
| Refrigeration | 1 |
| Religion | 6 |
| Road traffic | 2 |
| Road works | 6 |
| Robotics | 2 |
| Roll stock | 27 |
| Rowing | 13 |
| Sakhalin | 7 |
| Sakhalin A | 1 |
| Scientific | 3 |
| Securities | 1 |
| Security systems | 3 |
| Seismology | 3 |
| Semiconductors | 3 |
| Shipbuilding | 9 |
| Silicate industry | 2 |
| Skiing | 1 |
| Slang | 48 |
| Solar power | 1 |
| Soviet | 4 |
| Space | 75 |
| Spinning | 2 |
| Sports | 31 |
| Statistics | 2 |
| Stock Exchange | 2 |
| Sublime | 6 |
| Technology | 447 |
| Teenager slang | 1 |
| Telecommunications | 69 |
| Telephony | 3 |
| Television | 5 |
| Textile industry | 20 |
| Thermal engineering | 8 |
| Trademark | 1 |
| Transport | 86 |
| Travel | 3 |
| Tribology | 1 |
| Trucks/Lorries | 1 |
| Unit measures | 1 |
| United States | 2 |
| University | 1 |
| Vibration monitoring | 2 |
| Vulgar | 12 |
| Warehouse | 1 |
| Water resources | 2 |
| Water supply | 1 |
| Weapons and gunsmithing | 4 |
| Weapons of mass destruction | 1 |
| Welding | 1 |
| Well control | 2 |
| Wine tasting | 1 |
| Winemaking | 3 |
| Wiring | 1 |
| Wood processing | 31 |
| Wrestling | 1 |
| Yachting | 1 |
| Zoology | 11 |