Subject  | Description | Entries | Users |
| agr. | Agricultuur, Landbouw / Agriculture, Aquaculture | 166 | 309 |
| anat. | Anatomie / Human Anatomy | 311 | 558 |
| apoth. | Apotheek / Pharmacy | 70 | 310 |
| archeo. | Archeologie / Archaeology | 99 | 396 |
| archi. | Architectuur / Architecture | 218 | 519 |
| astron. | Astronomie / Astronomy | 209 | 675 |
| audio | Audiologie / Audiology | 21 | 229 |
| auto | Auto, Mechaniek / Automotive Engineering | 158 | 536 |
| bergsp. | Bergsport / Climbing, Mountaineering | 9 | 274 |
| bestuur. | Bestuurskunde / (Public) Administration | 36 | 445 |
| beurs | Beurswezen / Stock Exchange | 45 | 277 |
| biblio. | Bibliotheekwetenschap / Library Science | 15 | 205 |
| bijbel | Bijbels / Biblical | 22 | 414 |
| biochem. | Biochemie / Biochemistry | 134 | 359 |
| biol. | Biologie / Biology | 331 | 732 |
| biotech. | Biotechnologie / Biotechnology | 5 | 310 |
| boekhoud | Boekhouding / Accounting | 10 | 439 |
| bos. | Bosbouwkunde / Forestry | 39 | 183 |
| bot. | Botanie / Botany, Plants | 770 | 438 |
| bouwk. | Bouwkunde / Construction | 182 | 357 |
| BrandNoo | Brandweer & Nooddienst / Firefighting & Rescue | 40 | 146 |
| brouw. | Brouwen / Brewing | 21 | 172 |
| chem. | Chemie, scheikunde / Chemistry | 708 | 593 |
| citaat | Citaat / Quotation | 1 | 499 |
| comics | Comics en animal cartoons / Comics and Animated Cartoons | 21 | 378 |
| comput. | Computer, Informatica / Computer Sciences | 159 | 1767 |
| cosm. | Cosmetica & Lichaamsverzorging / Cosmetics & Body Care | 71 | 276 |
| dans | Dans / Dance | 59 | 409 |
| diergen. | Diergeneeskunde / Veterinary Medicine | 28 | 176 |
| drugs | Drugs / Drugs | 52 | 295 |
| druk | Druk, Typografie, Opmaak / Print, Typography, Layout | 22 | 299 |
| econ. | Economie / Economy | 338 | 985 |
| eenheid | Eenheden, Maten, Gewichten / Units, Measures, Weights | 47 | 456 |
| elektr. | Elektrotechniek, Elektronica / Electrical Engin., Electronics | 76 | 749 |
| entom. | Entomologie, Insectenkunde / Entomology | 647 | 117 |
| esot. | Esoterisme / Esotericism | 28 | 254 |
| etn. | Etnologie / Ethnology | 255 | 295 |
| EU | Europese Unie / European Union | 17 | 724 |
| F | Fictie / Fiction: Names and Titles in Literature, Film, TV, Arts | 199 | 858 |
| FarTech. | Farmaceutische technologie / Medical Engineering & Imaging | 40 | 273 |
| fiets | Fiets / Bicycle | 83 | 555 |
| filat. | Filatelie, Postzegelkunde / Philately | 12 | 65 |
| film | Film / Film | 282 | 1364 |
| filos. | Filosofie / Philosophy | 98 | 1025 |
| fin. | Financiën / Finance | 156 | 619 |
| fonet. | Fonetiek / Phonetics | 13 | 447 |
| foto. | Fotografie / Photography | 81 | 866 |
| fys. | Fysica / Physics | 186 | 866 |
| gastr. | Gastronomie, Koken / Gastronomy, Cooking | 1006 | 701 |
| genees. | Geneeskunde / Medicine | 1387 | 895 |
| geogr. | Geografie / Geography | 1494 | 931 |
| geol. | Geologie / Geology | 178 | 331 |
| gesch. | Geschiedenis / History | 345 | 1439 |
| handel | Handel / Commerce | 391 | 576 |
| harnas | Harnas / Historic Armour | 1 | 160 |
| herald. | Heraldiek / Heraldry | 2 | 120 |
| horloges | Horloges, Klokken / Watches, Clocks | 9 | 216 |
| hydro. | Hydrologie & Hydrogeologie / Hydrology & Hydrogeology | 58 | 118 |
| ind. | Industrie / Industry | 207 | 542 |
| ingen. | Ingenieurswetenschappen / Engineering | 9 | 1029 |
| internet | Internet / Internet | 67 | 1551 |
| jacht | Jacht / Hunting | 21 | 136 |
| journ. | Journalistiek / Journalism | 107 | 474 |
| kled. | Kleding / Clothing, Fashion | 429 | 483 |
| KM | Kwaliteitsmanagement / Quality Management | 7 | 296 |
| kunst | Kunst / Art | 187 | 1283 |
| lit. | Literatuur / Literature | 319 | 1332 |
| luchtv. | Luchtvaart / Aviation | 198 | 511 |
| market. | Marketing / Marketing, Advertising | 29 | 574 |
| material | Materiaalkunde / Materials Science | 25 | 311 |
| meteo. | Meteorologie / Meteorology | 241 | 248 |
| meubel | Meubels / Furniture | 104 | 245 |
| mijnb. | Mijnbouw / Mining & Drilling | 30 | 118 |
| mil. | Militair / Military | 289 | 445 |
| milieu | Milieu / Ecology, Environment | 135 | 772 |
| mineral. | Mineralogie / Mineralogy | 52 | 163 |
| muziek | Muziek / Music | 581 | 1845 |
| mycol. | Mycologie / Mycology | 44 | 123 |
| myth. | Mythologie / Mythology | 145 | 547 |
| naut. | Nautiek / Nautical Science | 211 | 231 |
| nucl. | Nucleaire Techniek / Nuclear Engineering | 29 | 196 |
| onom. | Onomastiek, Naamkunde / Names of Persons | 6 | 241 |
| opl. | Opleiding / Education | 235 | 1301 |
| optica | Optica / Optics | 16 | 186 |
| paard. | Paardensport / Equestrianism, Horses | 17 | 139 |
| pol. | Politiek / Politics | 786 | 1068 |
| psych. | Psychologie / Psychology | 247 | 979 |
| publ. | Publiceren / Publishing | 77 | 280 |
| recht | Recht / Law | 161 | 628 |
| reisw. | Reiswoorden / Travellers vocabulary | 39 | 735 |
| relig. | Religie / Religion | 402 | 730 |
| ret. | Retorica / Rhetoric | 7 | 431 |
| ruimteva | Ruimtevaart / Astronautics | 25 | 373 |
| sociol. | Sociologie / Sociology | 165 | 589 |
| speelg. | Speelgoed / Toys | 17 | 242 |
| spellen | Spellen / Games | 90 | 982 |
| spoorw. | Spoorwegen / Rail | 110 | 237 |
| sport | Sport / Sports | 596 | 1006 |
| spreekw. | Spreekwoord / Proverb | 48 | 655 |
| stat. | Statistiek / Statistics | 11 | 383 |
| T | T / Taxonomic terms for animals, plants and fungi (incl. varieties and breeds) | 4816 | 17 |
| taal. | Taalkunde / Linguistics | 367 | 1525 |
| tandh. | Tandheelkunde / Dental Medicine | 29 | 137 |
| tech. | Technologie / Technology | 145 | 1371 |
| telecom. | Telecommunicatie / Telecommunications | 35 | 566 |
| textiel | Textiel, textielindustrie / Textiles, Textile Industry | 22 | 169 |
| theater | Theater / Theatre | 83 | 530 |
| toerisme | Toerisme / Travel Industry | 124 | 566 |
| transp. | Transport / Transportation (Land Transport) | 78 | 365 |
| tuin. | Tuinbouw / Horticulture | 127 | 258 |
| TV | Televisie en Radio / Radio and Television | 90 | 578 |
| urban. | Urbanisme, Stedenbouwkunde / Urban Planning | 62 | 257 |
| UWE | UNESCO-werelderfgoed / UNESCO World Heritage | 5 | 288 |
| vakt. | Vaktaal / Specialized Term | 12 | 393 |
| valuta | Valuta / Currencies | 126 | 281 |
| vastg. | Vastgoed / Real Estate | 87 | 249 |
| verk. | Verkeerskunde / Traffic | 91 | 340 |
| verzek. | Verzekering / Insurance | 17 | 181 |
| vis | Ichtyologie, Vis / Ichthyology, fish, fishing | 263 | 116 |
| voed. | Voedingsmiddelenindustrie / Foodstuffs Industry | 148 | 322 |
| vogelk. | Vogelkunde / Ornithology | 2151 | 161 |
| wapens | Wapens / Weapons | 72 | 421 |
| werk | Werk en arbeidsmarkt / Jobs, Employment Market | 783 | 615 |
| werkt. | Werktuig / Tools | 118 | 534 |
| weten. | Wetenschap / Academic Disciplines | 358 | 1745 |
| wijnk. | Wijnkunde / Oenology | 34 | 130 |
| wisk. | Wiskunde / Mathematics | 301 | 892 |
| zeg. | Zegswijzen / Idiom | 74 | 708 |
| zoöl. | Zoölogie / Zoology, Animals | 1455 | 697 |
