Subject  | Description | Entries | Users |
| agr. | Agricultuur, Landbouw / Agriculture, Aquaculture | 166 | 307 |
| anat. | Anatomie / Human Anatomy | 307 | 555 |
| apoth. | Apotheek / Pharmacy | 70 | 310 |
| archeo. | Archeologie / Archaeology | 94 | 393 |
| archi. | Architectuur / Architecture | 218 | 517 |
| astron. | Astronomie / Astronomy | 205 | 670 |
| audio | Audiologie / Audiology | 21 | 228 |
| auto | Auto, Mechaniek / Automotive Engineering | 158 | 533 |
| bergsp. | Bergsport / Climbing, Mountaineering | 9 | 273 |
| bestuur. | Bestuurskunde / (Public) Administration | 36 | 443 |
| beurs | Beurswezen / Stock Exchange | 45 | 277 |
| biblio. | Bibliotheekwetenschap / Library Science | 14 | 205 |
| bijbel | Bijbels / Biblical | 22 | 413 |
| biochem. | Biochemie / Biochemistry | 132 | 357 |
| biol. | Biologie / Biology | 327 | 726 |
| biotech. | Biotechnologie / Biotechnology | 5 | 308 |
| boekhoud | Boekhouding / Accounting | 10 | 438 |
| bos. | Bosbouwkunde / Forestry | 39 | 182 |
| bot. | Botanie / Botany, Plants | 768 | 434 |
| bouwk. | Bouwkunde / Construction | 182 | 357 |
| BrandNoo | Brandweer & Nooddienst / Firefighting & Rescue | 40 | 145 |
| brouw. | Brouwen / Brewing | 21 | 171 |
| chem. | Chemie, scheikunde / Chemistry | 702 | 590 |
| citaat | Citaat / Quotation | 1 | 498 |
| comics | Comics en animal cartoons / Comics and Animated Cartoons | 21 | 376 |
| comput. | Computer, Informatica / Computer Sciences | 156 | 1747 |
| cosm. | Cosmetica & Lichaamsverzorging / Cosmetics & Body Care | 70 | 274 |
| dans | Dans / Dance | 59 | 407 |
| diergen. | Diergeneeskunde / Veterinary Medicine | 27 | 176 |
| drugs | Drugs / Drugs | 52 | 293 |
| druk | Druk, Typografie, Opmaak / Print, Typography, Layout | 22 | 298 |
| econ. | Economie / Economy | 337 | 982 |
| eenheid | Eenheden, Maten, Gewichten / Units, Measures, Weights | 47 | 454 |
| elektr. | Elektrotechniek, Elektronica / Electrical Engin., Electronics | 76 | 744 |
| entom. | Entomologie, Insectenkunde / Entomology | 644 | 115 |
| esot. | Esoterisme / Esotericism | 25 | 252 |
| etn. | Etnologie / Ethnology | 253 | 295 |
| EU | Europese Unie / European Union | 16 | 715 |
| F | Fictie / Fiction: Names and Titles in Literature, Film, TV, Arts | 197 | 852 |
| FarTech. | Farmaceutische technologie / Medical Engineering & Imaging | 40 | 273 |
| fiets | Fiets / Bicycle | 83 | 553 |
| filat. | Filatelie, Postzegelkunde / Philately | 12 | 65 |
| film | Film / Film | 282 | 1359 |
| filos. | Filosofie / Philosophy | 94 | 1020 |
| fin. | Financiën / Finance | 156 | 616 |
| fonet. | Fonetiek / Phonetics | 13 | 442 |
| foto. | Fotografie / Photography | 81 | 860 |
| fys. | Fysica / Physics | 185 | 858 |
| gastr. | Gastronomie, Koken / Gastronomy, Cooking | 995 | 696 |
| genees. | Geneeskunde / Medicine | 1376 | 887 |
| geogr. | Geografie / Geography | 1491 | 924 |
| geol. | Geologie / Geology | 175 | 328 |
| gesch. | Geschiedenis / History | 333 | 1427 |
| handel | Handel / Commerce | 389 | 574 |
| harnas | Harnas / Historic Armour | 1 | 159 |
| herald. | Heraldiek / Heraldry | 2 | 119 |
| horloges | Horloges, Klokken / Watches, Clocks | 9 | 216 |
| hydro. | Hydrologie & Hydrogeologie / Hydrology & Hydrogeology | 58 | 116 |
| ind. | Industrie / Industry | 207 | 537 |
| ingen. | Ingenieurswetenschappen / Engineering | 8 | 1019 |
| internet | Internet / Internet | 67 | 1539 |
| jacht | Jacht / Hunting | 21 | 136 |
| journ. | Journalistiek / Journalism | 107 | 472 |
| kled. | Kleding / Clothing, Fashion | 429 | 479 |
| KM | Kwaliteitsmanagement / Quality Management | 7 | 294 |
| kunst | Kunst / Art | 185 | 1274 |
| lit. | Literatuur / Literature | 316 | 1323 |
| luchtv. | Luchtvaart / Aviation | 198 | 509 |
| market. | Marketing / Marketing, Advertising | 29 | 573 |
| material | Materiaalkunde / Materials Science | 25 | 308 |
| meteo. | Meteorologie / Meteorology | 239 | 243 |
| meubel | Meubels / Furniture | 104 | 244 |
| mijnb. | Mijnbouw / Mining & Drilling | 30 | 118 |
| mil. | Militair / Military | 286 | 444 |
| milieu | Milieu / Ecology, Environment | 132 | 768 |
| mineral. | Mineralogie / Mineralogy | 49 | 162 |
| muziek | Muziek / Music | 581 | 1830 |
| mycol. | Mycologie / Mycology | 44 | 123 |
| myth. | Mythologie / Mythology | 145 | 545 |
| naut. | Nautiek / Nautical Science | 209 | 230 |
| nucl. | Nucleaire Techniek / Nuclear Engineering | 29 | 195 |
| onom. | Onomastiek, Naamkunde / Names of Persons | 6 | 238 |
| opl. | Opleiding / Education | 218 | 1292 |
| optica | Optica / Optics | 16 | 186 |
| paard. | Paardensport / Equestrianism, Horses | 17 | 138 |
| pol. | Politiek / Politics | 772 | 1062 |
| psych. | Psychologie / Psychology | 242 | 971 |
| publ. | Publiceren / Publishing | 77 | 280 |
| recht | Recht / Law | 160 | 623 |
| reisw. | Reiswoorden / Travellers vocabulary | 39 | 729 |
| relig. | Religie / Religion | 396 | 728 |
| ret. | Retorica / Rhetoric | 7 | 429 |
| ruimteva | Ruimtevaart / Astronautics | 25 | 371 |
| sociol. | Sociologie / Sociology | 158 | 585 |
| speelg. | Speelgoed / Toys | 17 | 242 |
| spellen | Spellen / Games | 90 | 967 |
| spoorw. | Spoorwegen / Rail | 110 | 236 |
| sport | Sport / Sports | 596 | 1001 |
| spreekw. | Spreekwoord / Proverb | 48 | 654 |
| stat. | Statistiek / Statistics | 10 | 379 |
| T | T / Taxonomic terms for animals, plants and fungi (incl. varieties and breeds) | 4669 | 17 |
| taal. | Taalkunde / Linguistics | 363 | 1513 |
| tandh. | Tandheelkunde / Dental Medicine | 29 | 137 |
| tech. | Technologie / Technology | 143 | 1357 |
| telecom. | Telecommunicatie / Telecommunications | 35 | 565 |
| textiel | Textiel, textielindustrie / Textiles, Textile Industry | 22 | 168 |
| theater | Theater / Theatre | 83 | 525 |
| toerisme | Toerisme / Travel Industry | 124 | 562 |
| transp. | Transport / Transportation (Land Transport) | 78 | 364 |
| tuin. | Tuinbouw / Horticulture | 126 | 256 |
| TV | Televisie en Radio / Radio and Television | 90 | 577 |
| urban. | Urbanisme, Stedenbouwkunde / Urban Planning | 62 | 256 |
| UWE | UNESCO-werelderfgoed / UNESCO World Heritage | 5 | 285 |
| vakt. | Vaktaal / Specialized Term | 12 | 390 |
| valuta | Valuta / Currencies | 126 | 281 |
| vastg. | Vastgoed / Real Estate | 87 | 248 |
| verk. | Verkeerskunde / Traffic | 91 | 340 |
| verzek. | Verzekering / Insurance | 17 | 181 |
| vis | Ichtyologie, Vis / Ichthyology, fish, fishing | 258 | 116 |
| voed. | Voedingsmiddelenindustrie / Foodstuffs Industry | 144 | 322 |
| vogelk. | Vogelkunde / Ornithology | 2094 | 160 |
| wapens | Wapens / Weapons | 72 | 418 |
| werk | Werk en arbeidsmarkt / Jobs, Employment Market | 783 | 610 |
| werkt. | Werktuig / Tools | 118 | 529 |
| weten. | Wetenschap / Academic Disciplines | 349 | 1731 |
| wijnk. | Wijnkunde / Oenology | 34 | 130 |
| wisk. | Wiskunde / Mathematics | 298 | 884 |
| zeg. | Zegswijzen / Idiom | 74 | 708 |
| zoöl. | Zoölogie / Zoology, Animals | 1370 | 695 |
