Subject  | Description | Entries | Users |
| agr. | Agricultuur, Landbouw / Agriculture, Aquaculture | 65 | 269 |
| anat. | Anatomie / Human Anatomy | 203 | 498 |
| apoth. | Apotheek / Pharmacy | 15 | 281 |
| archeo. | Archeologie / Archaeology | 28 | 352 |
| archi. | Architectuur / Architecture | 100 | 462 |
| astron. | Astronomie / Astronomy | 107 | 581 |
| audio | Audiologie / Audiology | 5 | 192 |
| auto | Auto, Mechaniek / Automotive Engineering | 95 | 476 |
| bergsp. | Bergsport / Climbing, Mountaineering | 1 | 248 |
| bestuur. | Bestuurskunde / (Public) Administration | 3 | 403 |
| beurs | Beurswezen / Stock Exchange | 6 | 248 |
| biblio. | Bibliotheekwetenschap / Library Science | 5 | 181 |
| bijbel | Bijbels / Biblical | 13 | 361 |
| biochem. | Biochemie / Biochemistry | 15 | 314 |
| biol. | Biologie / Biology | 90 | 648 |
| biotech. | Biotechnologie / Biotechnology | 1 | 271 |
| boekhoud | Boekhouding / Accounting | 1 | 401 |
| bos. | Bosbouwkunde / Forestry | 7 | 163 |
| bot. | Botanie / Botany, Plants | 453 | 394 |
| bouwk. | Bouwkunde / Construction | 100 | 322 |
| BrandNoo | Brandweer & Nooddienst / Firefighting & Rescue | 13 | 126 |
| brouw. | Brouwen / Brewing | 13 | 157 |
| chem. | Chemie, scheikunde / Chemistry | 290 | 521 |
| citaat | Citaat / Quotation | 1 | 463 |
| comics | Comics en animal cartoons / Comics and Animated Cartoons | 1 | 344 |
| comput. | Computer, Informatica / Computer Sciences | 76 | 1556 |
| cosm. | Cosmetica & Lichaamsverzorging / Cosmetics & Body Care | 24 | 253 |
| dans | Dans / Dance | 15 | 379 |
| diergen. | Diergeneeskunde / Veterinary Medicine | 8 | 164 |
| drugs | Drugs / Drugs | 8 | 256 |
| druk | Druk, Typografie, Opmaak / Print, Typography, Layout | 4 | 270 |
| econ. | Economie / Economy | 52 | 886 |
| eenheid | Eenheden, Maten, Gewichten / Units, Measures, Weights | 32 | 414 |
| elektr. | Elektrotechniek, Elektronica / Electrical Engin., Electronics | 41 | 660 |
| entom. | Entomologie, Insectenkunde / Entomology | 207 | 102 |
| esot. | Esoterisme / Esotericism | 17 | 228 |
| etn. | Etnologie / Ethnology | 89 | 266 |
| EU | Europese Unie / European Union | 1 | 648 |
| F | Fictie / Fiction: Names and Titles in Literature, Film, TV, Arts | 9 | 781 |
| FarTech. | Farmaceutische technologie / Medical Engineering & Imaging | 1 | 244 |
| fiets | Fiets / Bicycle | 57 | 492 |
| filat. | Filatelie, Postzegelkunde / Philately | 3 | 59 |
| film | Film / Film | 84 | 1258 |
| filos. | Filosofie / Philosophy | 23 | 903 |
| fin. | Financiën / Finance | 34 | 567 |
| fonet. | Fonetiek / Phonetics | 5 | 389 |
| foto. | Fotografie / Photography | 23 | 799 |
| fys. | Fysica / Physics | 74 | 772 |
| gastr. | Gastronomie, Koken / Gastronomy, Cooking | 476 | 638 |
| genees. | Geneeskunde / Medicine | 434 | 801 |
| geogr. | Geografie / Geography | 1094 | 818 |
| geol. | Geologie / Geology | 38 | 281 |
| gesch. | Geschiedenis / History | 129 | 1268 |
| handel | Handel / Commerce | 81 | 535 |
| herald. | Heraldiek / Heraldry | 1 | 98 |
| horloges | Horloges, Klokken / Watches, Clocks | 6 | 199 |
| hydro. | Hydrologie & Hydrogeologie / Hydrology & Hydrogeology | 18 | 105 |
| ind. | Industrie / Industry | 46 | 479 |
| ingen. | Ingenieurswetenschappen / Engineering | 2 | 897 |
| internet | Internet / Internet | 40 | 1391 |
| jacht | Jacht / Hunting | 17 | 128 |
| journ. | Journalistiek / Journalism | 37 | 426 |
| kled. | Kleding / Clothing, Fashion | 304 | 438 |
| kunst | Kunst / Art | 47 | 1146 |
| lit. | Literatuur / Literature | 81 | 1176 |
| luchtv. | Luchtvaart / Aviation | 87 | 447 |
| market. | Marketing / Marketing, Advertising | 3 | 536 |
| material | Materiaalkunde / Materials Science | 6 | 271 |
| meteo. | Meteorologie / Meteorology | 92 | 218 |
| meubel | Meubels / Furniture | 31 | 225 |
| mijnb. | Mijnbouw / Mining & Drilling | 3 | 109 |
| mil. | Militair / Military | 97 | 394 |
| milieu | Milieu / Ecology, Environment | 13 | 697 |
| mineral. | Mineralogie / Mineralogy | 41 | 147 |
| muziek | Muziek / Music | 203 | 1671 |
| mycol. | Mycologie / Mycology | 28 | 109 |
| myth. | Mythologie / Mythology | 80 | 488 |
| naut. | Nautiek / Nautical Science | 128 | 209 |
| nucl. | Nucleaire Techniek / Nuclear Engineering | 3 | 171 |
| opl. | Opleiding / Education | 82 | 1173 |
| optica | Optica / Optics | 2 | 162 |
| paard. | Paardensport / Equestrianism, Horses | 1 | 129 |
| pol. | Politiek / Politics | 274 | 941 |
| psych. | Psychologie / Psychology | 90 | 884 |
| publ. | Publiceren / Publishing | 36 | 250 |
| recht | Recht / Law | 77 | 580 |
| reisw. | Reiswoorden / Travellers vocabulary | 8 | 671 |
| relig. | Religie / Religion | 146 | 658 |
| ret. | Retorica / Rhetoric | 3 | 395 |
| ruimteva | Ruimtevaart / Astronautics | 2 | 314 |
| sociol. | Sociologie / Sociology | 20 | 514 |
| speelg. | Speelgoed / Toys | 7 | 211 |
| spellen | Spellen / Games | 36 | 852 |
| spoorw. | Spoorwegen / Rail | 65 | 214 |
| sport | Sport / Sports | 315 | 929 |
| spreekw. | Spreekwoord / Proverb | 20 | 590 |
| stat. | Statistiek / Statistics | 5 | 320 |
| taal. | Taalkunde / Linguistics | 244 | 1345 |
| tandh. | Tandheelkunde / Dental Medicine | 8 | 126 |
| tech. | Technologie / Technology | 57 | 1190 |
| telecom. | Telecommunicatie / Telecommunications | 9 | 518 |
| textiel | Textiel, textielindustrie / Textiles, Textile Industry | 11 | 151 |
| theater | Theater / Theatre | 28 | 487 |
| toerisme | Toerisme / Travel Industry | 23 | 516 |
| transp. | Transport / Transportation (Land Transport) | 45 | 318 |
| tuin. | Tuinbouw / Horticulture | 13 | 238 |
| TV | Televisie en Radio / Radio and Television | 24 | 538 |
| urban. | Urbanisme, Stedenbouwkunde / Urban Planning | 4 | 219 |
| vakt. | Vaktaal / Specialized Term | 4 | 347 |
| valuta | Valuta / Currencies | 121 | 249 |
| vastg. | Vastgoed / Real Estate | 35 | 233 |
| verk. | Verkeerskunde / Traffic | 29 | 302 |
| verzek. | Verzekering / Insurance | 6 | 163 |
| vis | Ichtyologie, Vis / Ichthyology, fish, fishing | 130 | 108 |
| voed. | Voedingsmiddelenindustrie / Foodstuffs Industry | 30 | 302 |
| vogelk. | Vogelkunde / Ornithology | 997 | 139 |
| wapens | Wapens / Weapons | 30 | 377 |
| werk | Werk en arbeidsmarkt / Jobs, Employment Market | 258 | 561 |
| werkt. | Werktuig / Tools | 41 | 463 |
| weten. | Wetenschap / Academic Disciplines | 93 | 1512 |
| wijnk. | Wijnkunde / Oenology | 13 | 123 |
| wisk. | Wiskunde / Mathematics | 140 | 775 |
| zeg. | Zegswijzen / Idiom | 73 | 710 |
| zoöl. | Zoölogie / Zoology, Animals | 831 | 647 |
