Subject  | Description | Entries | Users |
| admin | Administracja publiczna / (Public) Administration | 108 | 396 |
| akust. | Akustyka / Audiology | 1 | 190 |
| anat. | Anatomia / Human Anatomy | 272 | 489 |
| arch. | Architektura / Architecture | 123 | 460 |
| archeo. | Archeologia / Archaeology | 38 | 350 |
| astron. | Astronomia / Astronomy | 108 | 573 |
| astronau. | Astronautyka / Astronautics | 29 | 310 |
| bank. | Bankowość / Finance | 315 | 558 |
| bibl. | Biblijny / Biblical | 30 | 359 |
| biblio. | Bibliotekoznawstwo / Library Science | 2 | 179 |
| biochem. | Biochemia / Biochemistry | 13 | 308 |
| biol. | Biologia / Biology | 169 | 637 |
| biotech. | Biotechnologia / Biotechnology | 1 | 267 |
| bot. | Botanika / Botany, Plants | 501 | 394 |
| bud. | Budownictwo / Construction | 76 | 317 |
| chem. | Chemia / Chemistry | 320 | 512 |
| dent. | Dentystyka / Dental Medicine | 29 | 125 |
| druk. | Drukarstwo / Print, Typography, Layout | 28 | 268 |
| dzienn. | Dziennikarstwo / Journalism | 66 | 423 |
| eduk. | Edukacja / Education | 133 | 1163 |
| ekol. | Ekologia / Ecology, Environment | 57 | 689 |
| elektr. | Elektrotechnika, Elektronika / Electrical Engin., Electronics | 18 | 656 |
| enol. | Enologia / Oenology | 24 | 121 |
| entom. | Entomologia, Owadoznawstwo / Entomology | 99 | 102 |
| etno. | Etnologia / Ethnology | 236 | 265 |
| ezot. | Ezoteryka / Esotericism | 9 | 228 |
| F | Dzieła fikcji / Fiction: Names and Titles in Literature, Film, TV, Arts | 56 | 773 |
| farm. | Farmacja / Pharmacy | 68 | 274 |
| filat. | Filatelistyka / Philately | 1 | 59 |
| film | Film / Film | 120 | 1247 |
| fiz. | Fizyka / Physics | 160 | 762 |
| fonet. | Fonetyka / Phonetics | 6 | 384 |
| foto. | Fotografia / Photography | 60 | 794 |
| gastr. | Gastronomia / Gastronomy, Cooking | 633 | 629 |
| geogr. | Geografia / Geography | 808 | 804 |
| geol. | Geologia / Geology | 99 | 277 |
| górn. | Górnictwo / Mining & Drilling | 32 | 108 |
| gospod. | Gospodarka / Economy | 99 | 872 |
| gramat. | Gramatyka / Linguistics | 111 | 1327 |
| gry | Gry / Games | 52 | 844 |
| handel | Handel / Commerce | 404 | 529 |
| herald. | Heraldyka / Heraldry | 6 | 98 |
| hist. | Historia / History | 189 | 1252 |
| idiom | Idiom / Idiom | 114 | 711 |
| inform. | Informatyka / Computer Sciences | 260 | 1536 |
| internet | Internet / Internet | 76 | 1376 |
| Inżbiom. | Inżynieria biomedyczna / Medical Engineering & Imaging | 3 | 242 |
| inży. | Inżynieria / Engineering | 5 | 888 |
| jeźdź. | Jeźdźiectwo / Equestrianism, Horses | 27 | 129 |
| kolej | Kolej / Rail | 46 | 213 |
| kosm. | Kosmetyka i higiena ciała / Cosmetics & Body Care | 22 | 250 |
| leśn. | Leśnictwo / Forestry | 21 | 162 |
| lit. | Literatura / Literature | 93 | 1164 |
| lot. | Lotnictwo / Aviation | 190 | 445 |
| łowiect. | Łowiectwo / Hunting | 6 | 127 |
| mat. | Matematyka / Mathematics | 222 | 766 |
| mebel | Meble / Furniture | 33 | 222 |
| med. | Medycyna / Medicine | 1033 | 786 |
| MedWet | Medycyna weterynaryjna / Veterinary Medicine | 7 | 162 |
| meteo. | Meteorologia / Meteorology | 150 | 218 |
| mineral. | Mineralogia / Mineralogy | 15 | 146 |
| mitol. | Mitologia / Mythology | 218 | 484 |
| mot. | Motoryzacja / Automotive Engineering | 163 | 470 |
| muz. | Muzyka / Music | 255 | 1655 |
| mykol | Mykologia / Mycology | 20 | 109 |
| narko. | Narkotyk / Drugs | 13 | 253 |
| narzęd. | Narzędzia / Tools | 104 | 454 |
| nauka | Nauka / Academic Disciplines | 126 | 1496 |
| naut. | Nautyka / Nautical Science | 309 | 208 |
| neol. | Neologizm / Neologisms | 1 | 195 |
| nieruch. | Nieruchomość / Real Estate | 15 | 230 |
| nukl. | Nukleonika, Technika jądrowa / Nuclear Engineering | 4 | 168 |
| odzież | Odzież a moda / Clothing, Fashion | 245 | 432 |
| ogro. | Ogrodnictwo / Horticulture | 29 | 237 |
| onom. | Onomastyka / Names of Persons | 4 | 206 |
| optyka | Optyka / Optics | 27 | 159 |
| philos. | Filozofia / Philosophy | 50 | 890 |
| piwo | Piwowarstwo / Brewing | 15 | 156 |
| podróż | Słownictwo związane z podróżą / Travellers vocabulary | 41 | 662 |
| pol. | Polityka / Politics | 459 | 927 |
| prawo | Prawo / Law | 569 | 569 |
| przem | Przemysł / Industry | 8 | 472 |
| przysł. | Przysłowie / Proverb | 42 | 583 |
| psych. | Psychologia / Psychology | 21 | 872 |
| ptak | Ptak / Ornithology | 516 | 137 |
| rach. | Rachunkowość / Accounting | 12 | 396 |
| relig. | Religia / Religion | 595 | 649 |
| retor. | Retoryka / Rhetoric | 1 | 391 |
| roln. | Rolnictwo / Agriculture, Aquaculture | 160 | 268 |
| rower | Rower / Bicycle | 13 | 483 |
| ruch | Ruch drogowy / Traffic | 33 | 299 |
| ryba | Ryba / Ichthyology, fish, fishing | 58 | 107 |
| socjol. | Socjologia / Sociology | 163 | 511 |
| sport | Sport / Sports | 332 | 916 |
| stat. | Statystyka / Statistics | 5 | 318 |
| sztuka | Sztuka / Art | 53 | 1138 |
| taniec | Taniec / Dance | 38 | 377 |
| teatr | Teatr / Theatre | 61 | 482 |
| tech. | Technika / Technology | 406 | 1171 |
| telekom. | Telekomunikacja / Telecommunications | 5 | 513 |
| textil. | Textilia / Textiles, Textile Industry | 22 | 150 |
| transp. | Transport lądowy / Transportation (Land Transport) | 3 | 312 |
| turys. | Turystyka / Travel Industry | 22 | 506 |
| TV | Telewizja i Radio / Radio and Television | 44 | 533 |
| ubez. | Ubezpieczenia / Insurance | 4 | 158 |
| UE | Unia europejska / European Union | 21 | 637 |
| USD | UNESCO Światowe Dziedzictwo / UNESCO World Heritage | 16 | 254 |
| uzbr. | Uzbrojenie / Weapons | 71 | 373 |
| waluta | Waluta / Currencies | 21 | 245 |
| woj. | Wojsko / Military | 463 | 390 |
| wymiary | wymiary / Units, Measures, Weights | 48 | 407 |
| zabaw. | Zabawki / Toys | 34 | 206 |
| zawód | Zawód a rynek pracy / Jobs, Employment Market | 758 | 551 |
| zbroja | Zbroja / Historic Armour | 3 | 127 |
| zegary | Zegary / Watches, Clocks | 23 | 195 |
| zool. | Zoologia / Zoology, Animals | 705 | 640 |
