Subject  | Description | Entries | Users |
| agr. | Agricultuur, Landbouw / Agriculture, Aquaculture | 81 | 282 |
| anat. | Anatomie / Human Anatomy | 218 | 516 |
| apoth. | Apotheek / Pharmacy | 16 | 291 |
| archeo. | Archeologie / Archaeology | 32 | 363 |
| archi. | Architectuur / Architecture | 109 | 473 |
| astron. | Astronomie / Astronomy | 109 | 598 |
| audio | Audiologie / Audiology | 7 | 199 |
| auto | Auto, Mechaniek / Automotive Engineering | 97 | 491 |
| bergsp. | Bergsport / Climbing, Mountaineering | 2 | 254 |
| bestuur. | Bestuurskunde / (Public) Administration | 8 | 412 |
| beurs | Beurswezen / Stock Exchange | 7 | 255 |
| biblio. | Bibliotheekwetenschap / Library Science | 7 | 185 |
| bijbel | Bijbels / Biblical | 14 | 372 |
| biochem. | Biochemie / Biochemistry | 17 | 322 |
| biol. | Biologie / Biology | 105 | 668 |
| biotech. | Biotechnologie / Biotechnology | 1 | 282 |
| boekhoud | Boekhouding / Accounting | 1 | 412 |
| bos. | Bosbouwkunde / Forestry | 8 | 168 |
| bot. | Botanie / Botany, Plants | 490 | 403 |
| bouwk. | Bouwkunde / Construction | 112 | 331 |
| BrandNoo | Brandweer & Nooddienst / Firefighting & Rescue | 17 | 130 |
| brouw. | Brouwen / Brewing | 13 | 161 |
| chem. | Chemie, scheikunde / Chemistry | 304 | 536 |
| citaat | Citaat / Quotation | 1 | 475 |
| comics | Comics en animal cartoons / Comics and Animated Cartoons | 20 | 350 |
| comput. | Computer, Informatica / Computer Sciences | 83 | 1600 |
| cosm. | Cosmetica & Lichaamsverzorging / Cosmetics & Body Care | 25 | 259 |
| dans | Dans / Dance | 15 | 383 |
| diergen. | Diergeneeskunde / Veterinary Medicine | 11 | 169 |
| drugs | Drugs / Drugs | 9 | 262 |
| druk | Druk, Typografie, Opmaak / Print, Typography, Layout | 4 | 276 |
| econ. | Economie / Economy | 67 | 909 |
| eenheid | Eenheden, Maten, Gewichten / Units, Measures, Weights | 32 | 423 |
| elektr. | Elektrotechniek, Elektronica / Electrical Engin., Electronics | 42 | 680 |
| entom. | Entomologie, Insectenkunde / Entomology | 486 | 108 |
| esot. | Esoterisme / Esotericism | 22 | 234 |
| etn. | Etnologie / Ethnology | 91 | 276 |
| EU | Europese Unie / European Union | 5 | 659 |
| F | Fictie / Fiction: Names and Titles in Literature, Film, TV, Arts | 139 | 803 |
| FarTech. | Farmaceutische technologie / Medical Engineering & Imaging | 2 | 250 |
| fiets | Fiets / Bicycle | 62 | 509 |
| filat. | Filatelie, Postzegelkunde / Philately | 4 | 61 |
| film | Film / Film | 112 | 1284 |
| filos. | Filosofie / Philosophy | 46 | 930 |
| fin. | Financiën / Finance | 37 | 580 |
| fonet. | Fonetiek / Phonetics | 5 | 402 |
| foto. | Fotografie / Photography | 27 | 817 |
| fys. | Fysica / Physics | 86 | 793 |
| gastr. | Gastronomie, Koken / Gastronomy, Cooking | 540 | 654 |
| genees. | Geneeskunde / Medicine | 517 | 821 |
| geogr. | Geografie / Geography | 1110 | 844 |
| geol. | Geologie / Geology | 47 | 291 |
| gesch. | Geschiedenis / History | 143 | 1306 |
| handel | Handel / Commerce | 101 | 547 |
| herald. | Heraldiek / Heraldry | 1 | 103 |
| horloges | Horloges, Klokken / Watches, Clocks | 6 | 202 |
| hydro. | Hydrologie & Hydrogeologie / Hydrology & Hydrogeology | 20 | 108 |
| ind. | Industrie / Industry | 49 | 488 |
| ingen. | Ingenieurswetenschappen / Engineering | 3 | 919 |
| internet | Internet / Internet | 44 | 1420 |
| jacht | Jacht / Hunting | 18 | 131 |
| journ. | Journalistiek / Journalism | 56 | 435 |
| kled. | Kleding / Clothing, Fashion | 305 | 450 |
| kunst | Kunst / Art | 63 | 1177 |
| lit. | Literatuur / Literature | 204 | 1209 |
| luchtv. | Luchtvaart / Aviation | 91 | 460 |
| market. | Marketing / Marketing, Advertising | 4 | 544 |
| material | Materiaalkunde / Materials Science | 8 | 281 |
| meteo. | Meteorologie / Meteorology | 97 | 223 |
| meubel | Meubels / Furniture | 37 | 230 |
| mijnb. | Mijnbouw / Mining & Drilling | 3 | 110 |
| mil. | Militair / Military | 100 | 400 |
| milieu | Milieu / Ecology, Environment | 36 | 717 |
| mineral. | Mineralogie / Mineralogy | 41 | 150 |
| muziek | Muziek / Music | 273 | 1714 |
| mycol. | Mycologie / Mycology | 28 | 114 |
| myth. | Mythologie / Mythology | 83 | 503 |
| naut. | Nautiek / Nautical Science | 130 | 214 |
| nucl. | Nucleaire Techniek / Nuclear Engineering | 6 | 176 |
| onom. | Onomastiek, Naamkunde / Names of Persons | 1 | 215 |
| opl. | Opleiding / Education | 85 | 1196 |
| optica | Optica / Optics | 4 | 170 |
| paard. | Paardensport / Equestrianism, Horses | 1 | 132 |
| pol. | Politiek / Politics | 359 | 966 |
| psych. | Psychologie / Psychology | 101 | 901 |
| publ. | Publiceren / Publishing | 36 | 256 |
| recht | Recht / Law | 80 | 583 |
| reisw. | Reiswoorden / Travellers vocabulary | 11 | 682 |
| relig. | Religie / Religion | 181 | 676 |
| ret. | Retorica / Rhetoric | 4 | 403 |
| ruimteva | Ruimtevaart / Astronautics | 6 | 328 |
| sociol. | Sociologie / Sociology | 29 | 532 |
| speelg. | Speelgoed / Toys | 10 | 219 |
| spellen | Spellen / Games | 41 | 875 |
| spoorw. | Spoorwegen / Rail | 72 | 216 |
| sport | Sport / Sports | 327 | 945 |
| spreekw. | Spreekwoord / Proverb | 34 | 606 |
| stat. | Statistiek / Statistics | 6 | 336 |
| T | T / Taxonomic terms for animals, plants and fungi (incl. varieties and breeds) | 2821 | 5 |
| taal. | Taalkunde / Linguistics | 247 | 1385 |
| tandh. | Tandheelkunde / Dental Medicine | 11 | 130 |
| tech. | Technologie / Technology | 68 | 1219 |
| telecom. | Telecommunicatie / Telecommunications | 10 | 530 |
| textiel | Textiel, textielindustrie / Textiles, Textile Industry | 11 | 155 |
| theater | Theater / Theatre | 48 | 494 |
| toerisme | Toerisme / Travel Industry | 30 | 526 |
| transp. | Transport / Transportation (Land Transport) | 46 | 325 |
| tuin. | Tuinbouw / Horticulture | 24 | 242 |
| TV | Televisie en Radio / Radio and Television | 28 | 551 |
| urban. | Urbanisme, Stedenbouwkunde / Urban Planning | 4 | 226 |
| vakt. | Vaktaal / Specialized Term | 5 | 356 |
| valuta | Valuta / Currencies | 121 | 259 |
| vastg. | Vastgoed / Real Estate | 35 | 238 |
| verk. | Verkeerskunde / Traffic | 34 | 309 |
| verzek. | Verzekering / Insurance | 8 | 168 |
| vis | Ichtyologie, Vis / Ichthyology, fish, fishing | 153 | 110 |
| voed. | Voedingsmiddelenindustrie / Foodstuffs Industry | 41 | 307 |
| vogelk. | Vogelkunde / Ornithology | 1065 | 147 |
| wapens | Wapens / Weapons | 31 | 384 |
| werk | Werk en arbeidsmarkt / Jobs, Employment Market | 284 | 579 |
| werkt. | Werktuig / Tools | 42 | 476 |
| weten. | Wetenschap / Academic Disciplines | 140 | 1568 |
| wijnk. | Wijnkunde / Oenology | 18 | 126 |
| wisk. | Wiskunde / Mathematics | 148 | 798 |
| zeg. | Zegswijzen / Idiom | 73 | 710 |
| zoöl. | Zoölogie / Zoology, Animals | 863 | 658 |
