Subject  | Description | Entries | Users |
| agr. | Agricultuur, Landbouw / Agriculture, Aquaculture | 42 | 268 |
| anat. | Anatomie / Human Anatomy | 190 | 489 |
| apoth. | Apotheek / Pharmacy | 15 | 274 |
| archeo. | Archeologie / Archaeology | 26 | 350 |
| archi. | Architectuur / Architecture | 77 | 460 |
| astron. | Astronomie / Astronomy | 106 | 573 |
| audio | Audiologie / Audiology | 5 | 190 |
| auto | Auto, Mechaniek / Automotive Engineering | 41 | 471 |
| bestuur. | Bestuurskunde / (Public) Administration | 3 | 396 |
| beurs | Beurswezen / Stock Exchange | 6 | 241 |
| biblio. | Bibliotheekwetenschap / Library Science | 1 | 179 |
| bijbel | Bijbels / Biblical | 13 | 359 |
| biochem. | Biochemie / Biochemistry | 12 | 308 |
| biol. | Biologie / Biology | 74 | 637 |
| biotech. | Biotechnologie / Biotechnology | 1 | 267 |
| boekhoud | Boekhouding / Accounting | 1 | 396 |
| bos. | Bosbouwkunde / Forestry | 6 | 162 |
| bot. | Botanie / Botany, Plants | 430 | 394 |
| bouwk. | Bouwkunde / Construction | 92 | 317 |
| BrandNoo | Brandweer & Nooddienst / Firefighting & Rescue | 1 | 122 |
| brouw. | Brouwen / Brewing | 5 | 156 |
| chem. | Chemie, scheikunde / Chemistry | 285 | 512 |
| citaat | Citaat / Quotation | 1 | 457 |
| comics | Comics en animal cartoons / Comics and Animated Cartoons | 1 | 341 |
| comput. | Computer, Informatica / Computer Sciences | 45 | 1537 |
| cosm. | Cosmetica & Lichaamsverzorging / Cosmetics & Body Care | 20 | 250 |
| dans | Dans / Dance | 15 | 377 |
| diergen. | Diergeneeskunde / Veterinary Medicine | 5 | 162 |
| drugs | Drugs / Drugs | 8 | 253 |
| druk | Druk, Typografie, Opmaak / Print, Typography, Layout | 4 | 268 |
| econ. | Economie / Economy | 37 | 873 |
| eenheid | Eenheden, Maten, Gewichten / Units, Measures, Weights | 28 | 407 |
| elektr. | Elektrotechniek, Elektronica / Electrical Engin., Electronics | 39 | 657 |
| entom. | Entomologie, Insectenkunde / Entomology | 203 | 102 |
| esot. | Esoterisme / Esotericism | 15 | 228 |
| etn. | Etnologie / Ethnology | 86 | 265 |
| EU | Europese Unie / European Union | 1 | 637 |
| F | Fictie / Fiction: Names and Titles in Literature, Film, TV, Arts | 9 | 774 |
| fiets | Fiets / Bicycle | 11 | 483 |
| filat. | Filatelie, Postzegelkunde / Philately | 1 | 59 |
| film | Film / Film | 68 | 1248 |
| filos. | Filosofie / Philosophy | 22 | 890 |
| fin. | Financiën / Finance | 31 | 558 |
| fonet. | Fonetiek / Phonetics | 5 | 384 |
| foto. | Fotografie / Photography | 21 | 794 |
| fys. | Fysica / Physics | 74 | 762 |
| gastr. | Gastronomie, Koken / Gastronomy, Cooking | 362 | 630 |
| genees. | Geneeskunde / Medicine | 269 | 786 |
| geogr. | Geografie / Geography | 1086 | 805 |
| geol. | Geologie / Geology | 32 | 277 |
| gesch. | Geschiedenis / History | 115 | 1252 |
| handel | Handel / Commerce | 32 | 530 |
| herald. | Heraldiek / Heraldry | 1 | 98 |
| horloges | Horloges, Klokken / Watches, Clocks | 4 | 195 |
| hydro. | Hydrologie & Hydrogeologie / Hydrology & Hydrogeology | 15 | 104 |
| ind. | Industrie / Industry | 23 | 472 |
| ingen. | Ingenieurswetenschappen / Engineering | 2 | 888 |
| internet | Internet / Internet | 23 | 1377 |
| journ. | Journalistiek / Journalism | 14 | 423 |
| kled. | Kleding / Clothing, Fashion | 235 | 432 |
| kunst | Kunst / Art | 41 | 1138 |
| lit. | Literatuur / Literature | 59 | 1164 |
| luchtv. | Luchtvaart / Aviation | 68 | 445 |
| material | Materiaalkunde / Materials Science | 6 | 265 |
| meteo. | Meteorologie / Meteorology | 86 | 218 |
| meubel | Meubels / Furniture | 19 | 222 |
| mijnb. | Mijnbouw / Mining & Drilling | 3 | 108 |
| mil. | Militair / Military | 71 | 390 |
| milieu | Milieu / Ecology, Environment | 10 | 689 |
| mineral. | Mineralogie / Mineralogy | 40 | 146 |
| muziek | Muziek / Music | 137 | 1655 |
| mycol. | Mycologie / Mycology | 28 | 109 |
| myth. | Mythologie / Mythology | 77 | 484 |
| naut. | Nautiek / Nautical Science | 122 | 208 |
| nucl. | Nucleaire Techniek / Nuclear Engineering | 3 | 168 |
| opl. | Opleiding / Education | 38 | 1164 |
| optica | Optica / Optics | 2 | 159 |
| pol. | Politiek / Politics | 242 | 927 |
| psych. | Psychologie / Psychology | 84 | 872 |
| publ. | Publiceren / Publishing | 18 | 249 |
| recht | Recht / Law | 61 | 569 |
| relig. | Religie / Religion | 118 | 649 |
| ret. | Retorica / Rhetoric | 3 | 391 |
| ruimteva | Ruimtevaart / Astronautics | 2 | 310 |
| sociol. | Sociologie / Sociology | 14 | 511 |
| speelg. | Speelgoed / Toys | 3 | 206 |
| spellen | Spellen / Games | 32 | 845 |
| spoorw. | Spoorwegen / Rail | 62 | 213 |
| sport | Sport / Sports | 224 | 916 |
| spreekw. | Spreekwoord / Proverb | 20 | 583 |
| stat. | Statistiek / Statistics | 5 | 318 |
| taal. | Taalkunde / Linguistics | 243 | 1327 |
| tandh. | Tandheelkunde / Dental Medicine | 6 | 125 |
| tech. | Technologie / Technology | 44 | 1171 |
| telecom. | Telecommunicatie / Telecommunications | 9 | 513 |
| textiel | Textiel, textielindustrie / Textiles, Textile Industry | 9 | 150 |
| theater | Theater / Theatre | 24 | 482 |
| transp. | Transport / Transportation (Land Transport) | 28 | 312 |
| tuin. | Tuinbouw / Horticulture | 10 | 237 |
| TV | Televisie en Radio / Radio and Television | 11 | 533 |
| urban. | Urbanisme, Stedenbouwkunde / Urban Planning | 1 | 217 |
| vakt. | Vaktaal / Specialized Term | 3 | 341 |
| valuta | Valuta / Currencies | 121 | 245 |
| vastg. | Vastgoed / Real Estate | 28 | 230 |
| verk. | Verkeerskunde / Traffic | 15 | 299 |
| verzek. | Verzekering / Insurance | 1 | 158 |
| vis | Ichtyologie, Vis / Ichthyology, fish, fishing | 102 | 107 |
| voed. | Voedingsmiddelenindustrie / Foodstuffs Industry | 24 | 298 |
| vogelk. | Vogelkunde / Ornithology | 991 | 137 |
| wapens | Wapens / Weapons | 24 | 373 |
| werk | Werk en arbeidsmarkt / Jobs, Employment Market | 174 | 552 |
| werkt. | Werktuig / Tools | 30 | 454 |
| weten. | Wetenschap / Academic Disciplines | 83 | 1496 |
| wijnk. | Wijnkunde / Oenology | 7 | 121 |
| wisk. | Wiskunde / Mathematics | 140 | 766 |
| zeg. | Zegswijzen / Idiom | 73 | 711 |
| zoöl. | Zoölogie / Zoology, Animals | 759 | 640 |
