Subject  | Description | Entries | Users |
| agr. | Agricultuur, Landbouw / Agriculture, Aquaculture | 33 | 244 |
| anat. | Anatomie / Human Anatomy | 185 | 435 |
| apoth. | Apotheek / Pharmacy | 11 | 245 |
| archeo. | Archeologie / Archaeology | 21 | 317 |
| archi. | Architectuur / Architecture | 41 | 414 |
| astron. | Astronomie / Astronomy | 94 | 509 |
| audio | Audiologie / Audiology | 4 | 172 |
| auto | Auto, Mechaniek / Automotive Engineering | 40 | 432 |
| bestuur. | Bestuurskunde / (Public) Administration | 3 | 365 |
| beurs | Beurswezen / Stock Exchange | 6 | 214 |
| biblio. | Bibliotheekwetenschap / Library Science | 1 | 163 |
| bijbel | Bijbels / Biblical | 13 | 331 |
| biochem. | Biochemie / Biochemistry | 8 | 270 |
| biol. | Biologie / Biology | 37 | 570 |
| biotech. | Biotechnologie / Biotechnology | 1 | 240 |
| boekhoud | Boekhouding / Accounting | 1 | 362 |
| bos. | Bosbouwkunde / Forestry | 5 | 144 |
| bot. | Botanie / Botany, Plants | 374 | 354 |
| bouwk. | Bouwkunde / Construction | 57 | 292 |
| brouw. | Brouwen / Brewing | 4 | 140 |
| chem. | Chemie, scheikunde / Chemistry | 201 | 461 |
| citaat | Citaat / Quotation | 1 | 426 |
| comics | Comics en animal cartoons / Comics and Animated Cartoons | 1 | 306 |
| comput. | Computer, Informatica / Computer Sciences | 40 | 1387 |
| cosm. | Cosmetica & Lichaamsverzorging / Cosmetics & Body Care | 15 | 232 |
| dans | Dans / Dance | 9 | 345 |
| diergen. | Diergeneeskunde / Veterinary Medicine | 5 | 146 |
| drugs | Drugs / Drugs | 8 | 222 |
| druk | Druk, Typografie, Opmaak / Print, Typography, Layout | 4 | 242 |
| econ. | Economie / Economy | 15 | 802 |
| eenheid | Eenheden, Maten, Gewichten / Units, Measures, Weights | 28 | 366 |
| elektr. | Elektrotechniek, Elektronica / Electrical Engin., Electronics | 35 | 606 |
| entom. | Entomologie, Insectenkunde / Entomology | 175 | 89 |
| esot. | Esoterisme / Esotericism | 13 | 208 |
| etn. | Etnologie / Ethnology | 83 | 238 |
| EU | Europese Unie / European Union | 1 | 573 |
| F | Fictie / Fiction: Names and Titles in Literature, Film, TV, Arts | 9 | 718 |
| fiets | Fiets / Bicycle | 7 | 434 |
| filat. | Filatelie, Postzegelkunde / Philately | 1 | 54 |
| film | Film / Film | 63 | 1162 |
| filos. | Filosofie / Philosophy | 15 | 809 |
| fin. | Financiën / Finance | 18 | 521 |
| foto. | Fotografie / Photography | 17 | 730 |
| fys. | Fysica / Physics | 63 | 682 |
| gastr. | Gastronomie, Koken / Gastronomy, Cooking | 345 | 577 |
| genees. | Geneeskunde / Medicine | 192 | 713 |
| geogr. | Geografie / Geography | 1071 | 725 |
| geol. | Geologie / Geology | 21 | 250 |
| gesch. | Geschiedenis / History | 106 | 1137 |
| handel | Handel / Commerce | 21 | 492 |
| herald. | Heraldiek / Heraldry | 1 | 88 |
| horloges | Horloges, Klokken / Watches, Clocks | 3 | 176 |
| hydro. | Hydrologie & Hydrogeologie / Hydrology & Hydrogeology | 13 | 93 |
| ind. | Industrie / Industry | 8 | 431 |
| internet | Internet / Internet | 22 | 1252 |
| journ. | Journalistiek / Journalism | 10 | 383 |
| kled. | Kleding / Clothing, Fashion | 234 | 392 |
| kunst | Kunst / Art | 25 | 1058 |
| lit. | Literatuur / Literature | 50 | 1066 |
| luchtv. | Luchtvaart / Aviation | 65 | 404 |
| material | Materiaalkunde / Materials Science | 1 | 237 |
| meteo. | Meteorologie / Meteorology | 82 | 192 |
| meubel | Meubels / Furniture | 15 | 200 |
| mijnb. | Mijnbouw / Mining & Drilling | 3 | 95 |
| mil. | Militair / Military | 71 | 344 |
| milieu | Milieu / Ecology, Environment | 6 | 628 |
| mineral. | Mineralogie / Mineralogy | 39 | 129 |
| muziek | Muziek / Music | 112 | 1531 |
| mycol. | Mycologie / Mycology | 22 | 93 |
| myth. | Mythologie / Mythology | 77 | 442 |
| naut. | Nautiek / Nautical Science | 121 | 190 |
| nucl. | Nucleaire Techniek / Nuclear Engineering | 3 | 149 |
| opl. | Opleiding / Education | 34 | 1068 |
| pol. | Politiek / Politics | 220 | 833 |
| psych. | Psychologie / Psychology | 65 | 799 |
| publ. | Publiceren / Publishing | 11 | 235 |
| recht | Recht / Law | 55 | 524 |
| relig. | Religie / Religion | 101 | 603 |
| ret. | Retorica / Rhetoric | 2 | 355 |
| speelg. | Speelgoed / Toys | 3 | 186 |
| spellen | Spellen / Games | 21 | 756 |
| spoorw. | Spoorwegen / Rail | 62 | 186 |
| sport | Sport / Sports | 208 | 851 |
| spreekw. | Spreekwoord / Proverb | 19 | 547 |
| taal. | Taalkunde / Linguistics | 236 | 1207 |
| tandh. | Tandheelkunde / Dental Medicine | 4 | 115 |
| tech. | Technologie / Technology | 41 | 1058 |
| telecom. | Telecommunicatie / Telecommunications | 9 | 466 |
| textiel | Textiel, textielindustrie / Textiles, Textile Industry | 7 | 135 |
| theater | Theater / Theatre | 22 | 446 |
| transp. | Transport / Transportation (Land Transport) | 27 | 280 |
| tuin. | Tuinbouw / Horticulture | 8 | 215 |
| TV | Televisie en Radio / Radio and Television | 8 | 491 |
| urban. | Urbanisme, Stedenbouwkunde / Urban Planning | 1 | 190 |
| vakt. | Vaktaal / Specialized Term | 3 | 311 |
| valuta | Valuta / Currencies | 121 | 213 |
| vastg. | Vastgoed / Real Estate | 1 | 208 |
| verk. | Verkeerskunde / Traffic | 14 | 271 |
| vis | Ichtyologie, Vis / Ichthyology, fish, fishing | 82 | 96 |
| voed. | Voedingsmiddelenindustrie / Foodstuffs Industry | 18 | 268 |
| vogelk. | Vogelkunde / Ornithology | 730 | 115 |
| wapens | Wapens / Weapons | 24 | 334 |
| werk | Werk en arbeidsmarkt / Jobs, Employment Market | 110 | 504 |
| werkt. | Werktuig / Tools | 25 | 406 |
| weten. | Wetenschap / Academic Disciplines | 33 | 1365 |
| wijnk. | Wijnkunde / Oenology | 5 | 116 |
| wisk. | Wiskunde / Mathematics | 81 | 682 |
| zeg. | Zegswijzen / Idiom | 73 | 718 |
| zoöl. | Zoölogie / Zoology, Animals | 646 | 587 |
