Subject  | Description | Entries | Users |
| agr. | Agricultuur, Landbouw / Agriculture, Aquaculture | 166 | 310 |
| anat. | Anatomie / Human Anatomy | 312 | 564 |
| apoth. | Apotheek / Pharmacy | 70 | 311 |
| archeo. | Archeologie / Archaeology | 101 | 399 |
| archi. | Architectuur / Architecture | 222 | 522 |
| astron. | Astronomie / Astronomy | 217 | 680 |
| audio | Audiologie / Audiology | 21 | 235 |
| auto | Auto, Mechaniek / Automotive Engineering | 158 | 539 |
| bergsp. | Bergsport / Climbing, Mountaineering | 9 | 277 |
| bestuur. | Bestuurskunde / (Public) Administration | 38 | 445 |
| beurs | Beurswezen / Stock Exchange | 45 | 278 |
| biblio. | Bibliotheekwetenschap / Library Science | 19 | 206 |
| bijbel | Bijbels / Biblical | 22 | 416 |
| biochem. | Biochemie / Biochemistry | 137 | 362 |
| biol. | Biologie / Biology | 335 | 737 |
| biotech. | Biotechnologie / Biotechnology | 5 | 312 |
| boekhoud | Boekhouding / Accounting | 10 | 440 |
| bos. | Bosbouwkunde / Forestry | 39 | 184 |
| bot. | Botanie / Botany, Plants | 774 | 442 |
| bouwk. | Bouwkunde / Construction | 182 | 360 |
| BrandNoo | Brandweer & Nooddienst / Firefighting & Rescue | 40 | 148 |
| brouw. | Brouwen / Brewing | 21 | 174 |
| chem. | Chemie, scheikunde / Chemistry | 723 | 599 |
| citaat | Citaat / Quotation | 1 | 499 |
| comics | Comics en animal cartoons / Comics and Animated Cartoons | 21 | 382 |
| comput. | Computer, Informatica / Computer Sciences | 163 | 1775 |
| cosm. | Cosmetica & Lichaamsverzorging / Cosmetics & Body Care | 71 | 278 |
| dans | Dans / Dance | 60 | 411 |
| diergen. | Diergeneeskunde / Veterinary Medicine | 31 | 177 |
| drugs | Drugs / Drugs | 52 | 297 |
| druk | Druk, Typografie, Opmaak / Print, Typography, Layout | 22 | 301 |
| econ. | Economie / Economy | 344 | 985 |
| eenheid | Eenheden, Maten, Gewichten / Units, Measures, Weights | 47 | 458 |
| elektr. | Elektrotechniek, Elektronica / Electrical Engin., Electronics | 80 | 753 |
| entom. | Entomologie, Insectenkunde / Entomology | 649 | 119 |
| esot. | Esoterisme / Esotericism | 28 | 259 |
| etn. | Etnologie / Ethnology | 256 | 299 |
| EU | Europese Unie / European Union | 19 | 728 |
| F | Fictie / Fiction: Names and Titles in Literature, Film, TV, Arts | 202 | 864 |
| FarTech. | Farmaceutische technologie / Medical Engineering & Imaging | 41 | 275 |
| fiets | Fiets / Bicycle | 83 | 561 |
| filat. | Filatelie, Postzegelkunde / Philately | 12 | 66 |
| film | Film / Film | 283 | 1372 |
| filos. | Filosofie / Philosophy | 100 | 1031 |
| fin. | Financiën / Finance | 157 | 619 |
| fonet. | Fonetiek / Phonetics | 13 | 450 |
| foto. | Fotografie / Photography | 81 | 871 |
| fys. | Fysica / Physics | 189 | 869 |
| gastr. | Gastronomie, Koken / Gastronomy, Cooking | 1028 | 704 |
| genees. | Geneeskunde / Medicine | 1407 | 902 |
| geogr. | Geografie / Geography | 1502 | 935 |
| geol. | Geologie / Geology | 182 | 332 |
| gesch. | Geschiedenis / History | 359 | 1448 |
| handel | Handel / Commerce | 394 | 576 |
| harnas | Harnas / Historic Armour | 1 | 162 |
| herald. | Heraldiek / Heraldry | 2 | 121 |
| horloges | Horloges, Klokken / Watches, Clocks | 9 | 217 |
| hydro. | Hydrologie & Hydrogeologie / Hydrology & Hydrogeology | 59 | 120 |
| ind. | Industrie / Industry | 207 | 543 |
| ingen. | Ingenieurswetenschappen / Engineering | 9 | 1035 |
| internet | Internet / Internet | 71 | 1557 |
| jacht | Jacht / Hunting | 21 | 137 |
| journ. | Journalistiek / Journalism | 109 | 477 |
| kled. | Kleding / Clothing, Fashion | 432 | 487 |
| KM | Kwaliteitsmanagement / Quality Management | 7 | 297 |
| kunst | Kunst / Art | 190 | 1288 |
| lit. | Literatuur / Literature | 326 | 1340 |
| luchtv. | Luchtvaart / Aviation | 200 | 515 |
| market. | Marketing / Marketing, Advertising | 30 | 574 |
| material | Materiaalkunde / Materials Science | 26 | 314 |
| meteo. | Meteorologie / Meteorology | 242 | 251 |
| meubel | Meubels / Furniture | 105 | 249 |
| mijnb. | Mijnbouw / Mining & Drilling | 32 | 119 |
| mil. | Militair / Military | 297 | 447 |
| milieu | Milieu / Ecology, Environment | 139 | 773 |
| mineral. | Mineralogie / Mineralogy | 55 | 166 |
| muziek | Muziek / Music | 612 | 1852 |
| mycol. | Mycologie / Mycology | 44 | 125 |
| myth. | Mythologie / Mythology | 148 | 551 |
| naut. | Nautiek / Nautical Science | 212 | 233 |
| nucl. | Nucleaire Techniek / Nuclear Engineering | 30 | 196 |
| onom. | Onomastiek, Naamkunde / Names of Persons | 6 | 244 |
| opl. | Opleiding / Education | 235 | 1306 |
| optica | Optica / Optics | 16 | 187 |
| paard. | Paardensport / Equestrianism, Horses | 17 | 140 |
| pol. | Politiek / Politics | 820 | 1072 |
| psych. | Psychologie / Psychology | 263 | 983 |
| publ. | Publiceren / Publishing | 80 | 282 |
| recht | Recht / Law | 167 | 633 |
| reisw. | Reiswoorden / Travellers vocabulary | 40 | 736 |
| relig. | Religie / Religion | 414 | 733 |
| ret. | Retorica / Rhetoric | 7 | 433 |
| ruimteva | Ruimtevaart / Astronautics | 25 | 374 |
| sociol. | Sociologie / Sociology | 176 | 594 |
| speelg. | Speelgoed / Toys | 17 | 244 |
| spellen | Spellen / Games | 90 | 984 |
| spoorw. | Spoorwegen / Rail | 111 | 239 |
| sport | Sport / Sports | 605 | 1008 |
| spreekw. | Spreekwoord / Proverb | 48 | 657 |
| stat. | Statistiek / Statistics | 11 | 386 |
| T | T / Taxonomic terms for animals, plants and fungi (incl. varieties and breeds) | 4833 | 18 |
| taal. | Taalkunde / Linguistics | 371 | 1535 |
| tandh. | Tandheelkunde / Dental Medicine | 29 | 138 |
| tech. | Technologie / Technology | 148 | 1380 |
| telecom. | Telecommunicatie / Telecommunications | 36 | 567 |
| textiel | Textiel, textielindustrie / Textiles, Textile Industry | 22 | 169 |
| theater | Theater / Theatre | 83 | 532 |
| toerisme | Toerisme / Travel Industry | 125 | 567 |
| transp. | Transport / Transportation (Land Transport) | 78 | 366 |
| tuin. | Tuinbouw / Horticulture | 128 | 260 |
| TV | Televisie en Radio / Radio and Television | 90 | 582 |
| urban. | Urbanisme, Stedenbouwkunde / Urban Planning | 63 | 260 |
| UWE | UNESCO-werelderfgoed / UNESCO World Heritage | 5 | 290 |
| vakt. | Vaktaal / Specialized Term | 15 | 395 |
| valuta | Valuta / Currencies | 127 | 282 |
| vastg. | Vastgoed / Real Estate | 87 | 249 |
| verk. | Verkeerskunde / Traffic | 92 | 342 |
| verzek. | Verzekering / Insurance | 17 | 181 |
| vis | Ichtyologie, Vis / Ichthyology, fish, fishing | 264 | 117 |
| voed. | Voedingsmiddelenindustrie / Foodstuffs Industry | 152 | 322 |
| vogelk. | Vogelkunde / Ornithology | 2160 | 163 |
| wapens | Wapens / Weapons | 74 | 422 |
| werk | Werk en arbeidsmarkt / Jobs, Employment Market | 791 | 616 |
| werkt. | Werktuig / Tools | 120 | 539 |
| weten. | Wetenschap / Academic Disciplines | 364 | 1757 |
| wijnk. | Wijnkunde / Oenology | 34 | 133 |
| wisk. | Wiskunde / Mathematics | 307 | 899 |
| zeg. | Zegswijzen / Idiom | 74 | 708 |
| zoöl. | Zoölogie / Zoology, Animals | 1463 | 700 |
