Subject  | Description | Entries | Users |
| admin | Administracja publiczna / (Public) Administration | 102 | 376 |
| akust. | Akustyka / Audiology | 1 | 176 |
| anat. | Anatomia / Human Anatomy | 267 | 455 |
| arch. | Architektura / Architecture | 123 | 429 |
| archeo. | Archeologia / Archaeology | 35 | 331 |
| astron. | Astronomia / Astronomy | 95 | 533 |
| astronau. | Astronautyka / Astronautics | 28 | 284 |
| bank. | Bankowość / Finance | 315 | 531 |
| bibl. | Biblijny / Biblical | 30 | 339 |
| biblio. | Bibliotekoznawstwo / Library Science | 2 | 167 |
| biochem. | Biochemia / Biochemistry | 11 | 281 |
| biol. | Biologia / Biology | 136 | 591 |
| biotech. | Biotechnologia / Biotechnology | 1 | 248 |
| bot. | Botanika / Botany, Plants | 491 | 369 |
| bud. | Budownictwo / Construction | 74 | 302 |
| chem. | Chemia / Chemistry | 312 | 478 |
| dent. | Dentystyka / Dental Medicine | 27 | 117 |
| druk. | Drukarstwo / Print, Typography, Layout | 28 | 250 |
| dzienn. | Dziennikarstwo / Journalism | 66 | 397 |
| eduk. | Edukacja / Education | 131 | 1099 |
| ekol. | Ekologia / Ecology, Environment | 57 | 649 |
| elektr. | Elektrotechnika, Elektronika / Electrical Engin., Electronics | 17 | 622 |
| enol. | Enologia / Oenology | 24 | 118 |
| entom. | Entomologia, Owadoznawstwo / Entomology | 91 | 94 |
| etno. | Etnologia / Ethnology | 232 | 246 |
| ezot. | Ezoteryka / Esotericism | 8 | 214 |
| F | Dzieła fikcji / Fiction: Names and Titles in Literature, Film, TV, Arts | 56 | 738 |
| farm. | Farmacja / Pharmacy | 67 | 256 |
| filat. | Filatelistyka / Philately | 1 | 55 |
| film | Film / Film | 120 | 1195 |
| fiz. | Fizyka / Physics | 150 | 712 |
| fonet. | Fonetyka / Phonetics | 1 | 356 |
| foto. | Fotografia / Photography | 58 | 749 |
| gastr. | Gastronomia / Gastronomy, Cooking | 608 | 593 |
| geogr. | Geografia / Geography | 798 | 753 |
| geol. | Geologia / Geology | 89 | 260 |
| górn. | Górnictwo / Mining & Drilling | 32 | 98 |
| gospod. | Gospodarka / Economy | 97 | 834 |
| gramat. | Gramatyka / Linguistics | 106 | 1243 |
| gry | Gry / Games | 52 | 793 |
| handel | Handel / Commerce | 391 | 509 |
| herald. | Heraldyka / Heraldry | 6 | 93 |
| hist. | Historia / History | 183 | 1174 |
| idiom | Idiom / Idiom | 114 | 717 |
| inform. | Informatyka / Computer Sciences | 258 | 1447 |
| internet | Internet / Internet | 75 | 1302 |
| Inżbiom. | Inżynieria biomedyczna / Medical Engineering & Imaging | 1 | 223 |
| inży. | Inżynieria / Engineering | 5 | 838 |
| jeźdź. | Jeźdźiectwo / Equestrianism, Horses | 27 | 125 |
| kolej | Kolej / Rail | 45 | 192 |
| kosm. | Kosmetyka i higiena ciała / Cosmetics & Body Care | 22 | 239 |
| leśn. | Leśnictwo / Forestry | 19 | 147 |
| lit. | Literatura / Literature | 92 | 1098 |
| lot. | Lotnictwo / Aviation | 188 | 422 |
| łowiect. | Łowiectwo / Hunting | 6 | 116 |
| mat. | Matematyka / Mathematics | 202 | 711 |
| mebel | Meble / Furniture | 32 | 208 |
| med. | Medycyna / Medicine | 984 | 736 |
| MedWet | Medycyna weterynaryjna / Veterinary Medicine | 7 | 150 |
| meteo. | Meteorologia / Meteorology | 150 | 201 |
| mineral. | Mineralogia / Mineralogy | 8 | 133 |
| mitol. | Mitologia / Mythology | 218 | 460 |
| mot. | Motoryzacja / Automotive Engineering | 160 | 448 |
| muz. | Muzyka / Music | 237 | 1571 |
| mykol | Mykologia / Mycology | 14 | 97 |
| narko. | Narkotyk / Drugs | 13 | 235 |
| narzęd. | Narzędzia / Tools | 102 | 425 |
| nauka | Nauka / Academic Disciplines | 91 | 1414 |
| naut. | Nautyka / Nautical Science | 307 | 196 |
| neol. | Neologizm / Neologisms | 1 | 197 |
| nieruch. | Nieruchomość / Real Estate | 15 | 217 |
| nukl. | Nukleonika, Technika jądrowa / Nuclear Engineering | 3 | 155 |
| odzież | Odzież a moda / Clothing, Fashion | 236 | 407 |
| ogro. | Ogrodnictwo / Horticulture | 27 | 225 |
| onom. | Onomastyka / Names of Persons | 4 | 184 |
| optyka | Optyka / Optics | 27 | 145 |
| philos. | Filozofia / Philosophy | 43 | 838 |
| piwo | Piwowarstwo / Brewing | 15 | 148 |
| podróż | Słownictwo związane z podróżą / Travellers vocabulary | 41 | 624 |
| pol. | Polityka / Politics | 446 | 868 |
| prawo | Prawo / Law | 567 | 534 |
| przem | Przemysł / Industry | 8 | 446 |
| przysł. | Przysłowie / Proverb | 42 | 558 |
| psych. | Psychologia / Psychology | 17 | 824 |
| ptak | Ptak / Ornithology | 445 | 120 |
| rach. | Rachunkowość / Accounting | 12 | 372 |
| relig. | Religia / Religion | 577 | 612 |
| roln. | Rolnictwo / Agriculture, Aquaculture | 156 | 252 |
| rower | Rower / Bicycle | 13 | 450 |
| ruch | Ruch drogowy / Traffic | 33 | 278 |
| ryba | Ryba / Ichthyology, fish, fishing | 53 | 98 |
| socjol. | Socjologia / Sociology | 162 | 488 |
| sport | Sport / Sports | 329 | 879 |
| stat. | Statystyka / Statistics | 5 | 293 |
| sztuka | Sztuka / Art | 51 | 1084 |
| taniec | Taniec / Dance | 38 | 350 |
| teatr | Teatr / Theatre | 61 | 453 |
| tech. | Technika / Technology | 406 | 1102 |
| textil. | Textilia / Textiles, Textile Industry | 21 | 142 |
| transp. | Transport lądowy / Transportation (Land Transport) | 3 | 291 |
| turys. | Turystyka / Travel Industry | 18 | 484 |
| TV | Telewizja i Radio / Radio and Television | 43 | 505 |
| ubez. | Ubezpieczenia / Insurance | 4 | 145 |
| UE | Unia europejska / European Union | 21 | 598 |
| USD | UNESCO Światowe Dziedzictwo / UNESCO World Heritage | 16 | 241 |
| uzbr. | Uzbrojenie / Weapons | 71 | 350 |
| waluta | Waluta / Currencies | 21 | 229 |
| woj. | Wojsko / Military | 456 | 364 |
| wymiary | wymiary / Units, Measures, Weights | 48 | 375 |
| zabaw. | Zabawki / Toys | 34 | 193 |
| zawód | Zawód a rynek pracy / Jobs, Employment Market | 736 | 527 |
| zbroja | Zbroja / Historic Armour | 3 | 116 |
| zegary | Zegary / Watches, Clocks | 23 | 181 |
| zool. | Zoologia / Zoology, Animals | 646 | 605 |
