| Subject | Description | Entries  | Users |
| bot. | Botany, Plants / Botanik, Pflanzen | 38348 | 170 |
| med. | Medicine / Medizin | 34973 | 349 |
| tech. | Technology / Technik | 21351 | 534 |
| zool. | Zoology, Animals / Zoologie, Tierkunde | 19094 | 317 |
| orn. | Ornithology / Ornithologie, Vogelkunde | 17386 | 53 |
| idiom | Idiom / Idiom, Redewendung | 13800 | 468 |
| gastr. | Gastronomy, Cooking / Gastronomie, Kochen | 11953 | 296 |
| law | Law / Jura, Rechtswesen | 11641 | 283 |
| relig. | Religion / Religion | 10813 | 316 |
| hist. | History / Historische Begriffe, Geschichte | 9868 | 569 |
| electr. | Electrical Engin., Electronics / Elektrotechnik, Elektronik | 9431 | 309 |
| F | Fiction: Names and Titles in Literature, Film, TV, Arts / Fiktion: Namen und Titel in Literatur, Film, TV, Kunst | 9394 | 365 |
| jobs | Jobs, Employment Market / Berufe, Arbeitsmarkt | 8432 | 261 |
| chem. | Chemistry / Chemie | 8312 | 228 |
| mus. | Music / Musik | 8129 | 815 |
| pol. | Politics / Politik | 7860 | 413 |
| sports | Sports / Sport | 7841 | 467 |
| entom. | Entomology / Entomologie, Insektenkunde | 7631 | 38 |
| econ. | Economy / Wirtschaft, Ökonomie | 7399 | 403 |
| comp. | Computer Sciences / Informatik, IT | 7223 | 668 |
| mil. | Military / Militärwesen | 6950 | 187 |
| MedTech. | Medical Engineering & Imaging / Medizintechnik | 6912 | 109 |
| fish | Ichthyology, fish, fishing / Fischkunde, Fischen, Angelsport | 6875 | 36 |
| biol. | Biology / Biologie | 6700 | 282 |
| cloth. | Clothing, Fashion / Bekleidung, Mode | 6609 | 200 |
| film | Film / Film | 6523 | 590 |
| geogr. | Geography / Geografie | 6510 | 364 |
| fin. | Finance / Finanzwesen | 6417 | 287 |
| lit. | Literature / Literatur | 6359 | 564 |
| anat. | Anatomy / Anatomie | 6174 | 197 |
| comm. | Commerce / Handel | 6048 | 257 |
| mineral. | Mineralogy / Mineralogie | 5836 | 62 |
| educ. | Education / Ausbildung | 5533 | 550 |
| phys. | Physics / Physik | 5210 | 340 |
| ling. | Linguistics / Linguistik, Sprachwissenschaft | 4635 | 590 |
| math. | Mathematics / Mathematik | 4339 | 339 |
| dent. | Dental Medicine / Zahnmedizin | 4310 | 58 |
| constr. | Construction / Bauwesen | 4262 | 148 |
| naut. | Nautical Science / Nautik, Schifffahrtskunde | 4116 | 94 |
| psych. | Psychology / Psychologie | 4114 | 407 |
| agr. | Agriculture, Aquaculture / Agrarwirtschaft, Land- und Gewässerbewirtschaftung | 3902 | 111 |
| archi. | Architecture / Architektur | 3836 | 204 |
| automot. | Automotive Engineering / Automobiltechnik | 3786 | 209 |
| spec. | Specialized Term / Fachsprachlicher Ausdruck | 3726 | 160 |
| pharm. | Pharmacy / Pharmazie | 3717 | 113 |
| aviat. | Aviation / Luftfahrt, Flugwesen | 3304 | 203 |
| art | Art / Kunst | 3269 | 532 |
| geol. | Geology / Geologie | 3223 | 128 |
| RadioTV | Radio and Television / Radio und Fernsehen | 3163 | 265 |
| biochem. | Biochemistry / Biochemie | 2810 | 131 |
| audio | Audiology / Audiologie, Akustik | 2793 | 80 |
| acad. | Academic Disciplines / Wissenschaft | 2532 | 652 |
| ecol. | Ecology, Environment / Ökologie, Umwelt | 2498 | 307 |
| rail | Rail / Eisenbahn | 2487 | 97 |
| tools | Tools / Werkzeuge | 2467 | 209 |
| transp. | Transportation (Land Transport) / Transportwesen (Landtransport) | 2411 | 146 |
| meteo. | Meteorology / Meteorologie | 2215 | 89 |
| mycol. | Mycology / Mykologie, Pilze | 2213 | 40 |
| philos. | Philosophy / Philosophie | 2192 | 405 |
| ind. | Industry / Industrie | 2084 | 220 |
| theatre | Theatre / Theater | 2076 | 243 |
| weapons | Weapons / Waffen | 1720 | 177 |
| food | Foodstuffs Industry / Lebensmittelindustrie | 1698 | 129 |
| photo. | Photography / Fotografie | 1673 | 376 |
| insur. | Insurance / Versicherungswesen | 1651 | 72 |
| archaeo. | Archaeology / Archäologie | 1647 | 150 |
| sociol. | Sociology / Soziologie | 1619 | 231 |
| admin. | (Public) Administration / (Öffentliche) Verwaltung | 1593 | 192 |
| telecom. | Telecommunications / Telekommunikation | 1592 | 238 |
| engin. | Engineering / Ingenieurwissenschaften | 1502 | 396 |
| hort. | Horticulture / Gartenbau | 1473 | 105 |
| textil. | Textiles, Textile Industry / Textilien, Textilindustrie | 1436 | 57 |
| tra. | Traffic / Verkehrswesen | 1360 | 133 |
| bibl. | Biblical / Biblisch | 1328 | 165 |
| stocks | Stock Exchange / Börsenwesen | 1287 | 114 |
| astron. | Astronomy / Astronomie | 1279 | 235 |
| QM | Quality Management / Qualitätsmanagement | 1265 | 98 |
| furn. | Furniture / Möbel | 1261 | 102 |
| publ. | Publishing / Verlagswesen | 1238 | 112 |
| ethn. | Ethnology / Ethnologie | 1235 | 123 |
| travel | Travel Industry / Touristik | 1221 | 227 |
| journ. | Journalism / Journalismus | 1204 | 185 |
| mining | Mining / Bergbau | 1192 | 49 |
| games | Games / Spiele | 1183 | 344 |
| print | Print, Typography, Layout / Druck, Typografie, Layout | 1165 | 117 |
| VetMed. | Veterinary Medicine / Veterinärmedizin | 1158 | 81 |
| acc. | Accounting / Buchführung | 1102 | 192 |
| oenol. | Oenology / Önologie, Lehre vom Wein | 1059 | 53 |
| myth. | Mythology / Mythologie | 1033 | 221 |
| Internet | Internet / Internet | 956 | 595 |
| proverb | Proverb / Sprichwort | 953 | 293 |
| material | Materials Science / Materialwissenschaft, Werkstoffkunde | 922 | 128 |
| EU | European Union / Europäische Union | 885 | 278 |
| RealEst. | Real Estate / Immobilien | 863 | 112 |
| hydro. | Hydrology & Hydrogeology / Hydrologie & Hydrogeologie | 846 | 49 |
| cosm. | Cosmetics & Body Care / Kosmetik und Körperpflege | 842 | 115 |
| TrVocab. | Travellers vocabulary / Reise-Wortschatz | 834 | 311 |
| FireResc | Firefighting & Rescue / Feuerwehr & Rettungsdienst | 821 | 66 |
| equest. | Equestrianism, Horses / Reitsport, Pferde | 813 | 64 |
| stat. | Statistics / Statistik | 797 | 143 |
| drugs | Drugs / Drogen | 758 | 83 |
| for. | Forestry / Forstwissenschaft, Forstwirtschaft | 736 | 67 |
| unit | Units, Weights, Measures / Einheiten, Maße, Gewichte | 714 | 181 |
| optics | Optics / Optik | 703 | 63 |
| market. | Marketing / Marketing, Vertrieb und Handelswesen | 668 | 247 |
| hunting | Hunting / Jagd | 640 | 60 |
| dance | Dance / Tanz | 600 | 178 |
| curr. | Currencies / Währungen | 589 | 104 |
| quote | Quotation / Zitat | 553 | 220 |
| bike | Bicycle / Fahrrad | 536 | 216 |
| urban | Urban Planning / Urbanistik, Stadtplanung | 473 | 94 |
| nucl. | Nuclear Engineering / Nukleartechnik | 455 | 78 |
| advert. | Advertising Language / Werbesprache | 435 | 198 |
| offensive | Offensive or Pejorative Terms, Expletives / Schimpfwörter und Kraftausdrücke | 399 | 132 |
| toys | Toys / Spielzeug | 396 | 91 |
| TM | Trademarks, Brand Names / Marken, Warenzeichen | 394 | 86 |
| watches | Watches, Clocks / Uhren | 391 | 88 |
| phonet. | Phonetics / Phonetik | 374 | 147 |
| comics | Comics and Animated Cartoons / Comics und Zeichentrickfilme | 317 | 146 |
| libr. | Library Science / Bibliothekswissenschaft | 307 | 89 |
| climbing | Climbing, Mountaineering / Bergsteigerei | 299 | 106 |
| brew | Brewing / Brauwesen | 299 | 57 |
| neol. | Neologisms / Neologismen (Wortneubildungen) | 286 | 112 |
| onom. | Onomastics / Onomastik, Namenkunde | 263 | 56 |
| astronau | Astronautics / Astronautik, Raumfahrt | 225 | 117 |
| biotech. | Biotechnology / Biotechnologie | 212 | 110 |
| philat. | Philately / Philatelie, Briefmarkenkunde | 191 | 28 |
| esot. | Esotericism / Esoterik | 188 | 106 |
| herald. | Heraldry / Heraldik | 141 | 44 |
| rhet. | Rhetoric / Rhetorik | 114 | 182 |
| armour | Armour / Rüstungen | 105 | 49 |
| UWH | UNESCO World Heritage / UNESCO Welterbe | 53 | 106 |
