| Subject |
Number of entries |
| Accounting |
1.546 |
| Accumulators |
176 |
| Agriculture |
20.944 |
| Alternative dispute resolution |
1 |
| American usage, not spelling |
1 |
| Animal husbandry |
620 |
| Antennas and waveguides |
728 |
| Art |
185 |
| Astronautics |
811 |
| Automatic control |
417 |
| Aviation |
3 |
| Bakery |
305 |
| Banking |
213 |
| Beverages |
305 |
| Book binding |
34 |
| Botany |
1.501 |
| Business |
522 |
| Cables and cable production |
270 |
| Chemistry |
11.396 |
| Coal |
789 |
| Commerce |
1.594 |
| Communications |
24.196 |
| Computer networks |
145 |
| Computers |
33 |
| Construction |
3.773 |
| Corporate governance |
36 |
| Criminal law |
986 |
| Cultural studies |
388 |
| Customs |
522 |
| Data processing |
134 |
| Demography |
303 |
| Earth sciences |
13.013 |
| Ecology |
207 |
| Economics |
15.855 |
| Education |
10.655 |
| Electric machinery |
317 |
| Electric motors |
380 |
| Electrical engineering |
338 |
| Electricity generation |
127 |
| Electronics |
26.913 |
| Employment |
340 |
| Energy industry |
2.074 |
| English |
122 |
| Environment |
20.059 |
| European Union |
43 |
| Finances |
15.853 |
| Fish farming pisciculture |
4.393 |
| Food industry |
3.341 |
| Forestry |
3.342 |
| General |
19.699 |
| Geography |
773 |
| Geophysics |
22 |
| Government, administration and public services |
673 |
| Ground forces Army |
1 |
| Health care |
8.661 |
| Hobbies and pastimes |
970 |
| Human rights activism |
1.131 |
| Immigration and citizenship |
1.650 |
| Industry |
18.737 |
| Informal |
90 |
| Information technology |
22.603 |
| Insurance |
1.634 |
| International law |
188 |
| International trade |
735 |
| Investment |
64 |
| Isolation |
108 |
| Labor law |
1.339 |
| Labor organization |
73 |
| Latin American |
8 |
| Law |
15.506 |
| Leather |
111 |
| Life sciences |
12.897 |
| Lighting other than cinema |
533 |
| Literature |
1 |
| Magnetics |
392 |
| Mammals |
60 |
| Marketing |
2.264 |
| Materials science |
3.695 |
| Mathematics |
5.855 |
| Mechanic engineering |
11.250 |
| Medical |
14.880 |
| Metallurgy |
8.564 |
| Microsoft |
14.363 |
| Milk production |
115 |
| Mineral products |
455 |
| Mining |
50 |
| Municipal planning |
459 |
| Natural resourses and wildlife conservation |
3.087 |
| Natural sciences |
11.198 |
| Nautical |
1 |
| Nuclear and fusion power |
72 |
| Nuclear physics |
442 |
| Obsolete / dated |
1.076 |
| Oil / petroleum |
154 |
| Ornithology |
376 |
| Patents |
6.956 |
| Pharmacy and pharmacology |
1.653 |
| Physical sciences |
1.181 |
| Physics |
272 |
| Politics |
3.483 |
| Power electronics |
181 |
| Power lines |
567 |
| Power system protection |
348 |
| Private international law |
52 |
| Procedural law |
806 |
| Psychology |
12 |
| Public relations |
3 |
| Radio |
330 |
| Religion |
268 |
| Research and development |
542 |
| Satellite communications |
121 |
| School |
2 |
| Scientific |
699 |
| Security systems |
114 |
| Semiconductors |
151 |
| Social science |
3.122 |
| Sociology |
131 |
| Spices |
533 |
| Sports |
2 |
| Statistics |
5.543 |
| Sugar production |
40 |
| Taxes |
1.388 |
| Technology |
6.663 |
| Telecommunications |
28 |
| Telephony |
272 |
| Textile industry |
388 |
| Trade unions |
335 |
| Transformers |
147 |
| Transport |
22.649 |
| United Nations |
634 |
| Waste management |
105 |
| Wind Energy |
79 |
| Wood processing |
92 |
| Work flow |
1.581 |
| Total: |
438.737 |
