Subject  | Description | Entries | Users |
| admin | Administracja publiczna / (Public) Administration | 114 | 402 |
| akust. | Akustyka / Audiology | 1 | 192 |
| anat. | Anatomia / Human Anatomy | 283 | 497 |
| arch. | Architektura / Architecture | 126 | 462 |
| archeo. | Archeologia / Archaeology | 38 | 352 |
| astron. | Astronomia / Astronomy | 108 | 581 |
| astronau. | Astronautyka / Astronautics | 31 | 314 |
| bank. | Bankowość / Finance | 322 | 567 |
| bibl. | Biblijny / Biblical | 31 | 361 |
| biblio. | Bibliotekoznawstwo / Library Science | 3 | 180 |
| biochem. | Biochemia / Biochemistry | 23 | 313 |
| biol. | Biologia / Biology | 173 | 647 |
| biotech. | Biotechnologia / Biotechnology | 1 | 270 |
| bot. | Botanika / Botany, Plants | 512 | 394 |
| bud. | Budownictwo / Construction | 79 | 322 |
| chem. | Chemia / Chemistry | 321 | 520 |
| dent. | Dentystyka / Dental Medicine | 29 | 126 |
| druk. | Drukarstwo / Print, Typography, Layout | 30 | 270 |
| dzienn. | Dziennikarstwo / Journalism | 66 | 425 |
| eduk. | Edukacja / Education | 135 | 1171 |
| ekol. | Ekologia / Ecology, Environment | 60 | 696 |
| elektr. | Elektrotechnika, Elektronika / Electrical Engin., Electronics | 20 | 660 |
| enol. | Enologia / Oenology | 24 | 123 |
| entom. | Entomologia, Owadoznawstwo / Entomology | 100 | 102 |
| etno. | Etnologia / Ethnology | 237 | 266 |
| ezot. | Ezoteryka / Esotericism | 10 | 228 |
| F | Dzieła fikcji / Fiction: Names and Titles in Literature, Film, TV, Arts | 56 | 781 |
| farm. | Farmacja / Pharmacy | 69 | 281 |
| filat. | Filatelistyka / Philately | 1 | 59 |
| film | Film / Film | 120 | 1257 |
| fiz. | Fizyka / Physics | 162 | 771 |
| fonet. | Fonetyka / Phonetics | 6 | 389 |
| foto. | Fotografia / Photography | 61 | 797 |
| gastr. | Gastronomia / Gastronomy, Cooking | 653 | 636 |
| geogr. | Geografia / Geography | 820 | 817 |
| geol. | Geologia / Geology | 99 | 281 |
| giełda | Giełda Papierów Wartościowych / Stock Exchange | 2 | 247 |
| górn. | Górnictwo / Mining & Drilling | 33 | 108 |
| gospod. | Gospodarka / Economy | 100 | 886 |
| gramat. | Gramatyka / Linguistics | 112 | 1342 |
| gry | Gry / Games | 52 | 851 |
| handel | Handel / Commerce | 420 | 535 |
| herald. | Heraldyka / Heraldry | 6 | 98 |
| hist. | Historia / History | 190 | 1265 |
| idiom | Idiom / Idiom | 114 | 710 |
| inform. | Informatyka / Computer Sciences | 265 | 1554 |
| internet | Internet / Internet | 81 | 1390 |
| Inżbiom. | Inżynieria biomedyczna / Medical Engineering & Imaging | 3 | 244 |
| inży. | Inżynieria / Engineering | 11 | 897 |
| jeźdź. | Jeźdźiectwo / Equestrianism, Horses | 27 | 129 |
| kolej | Kolej / Rail | 53 | 214 |
| kosm. | Kosmetyka i higiena ciała / Cosmetics & Body Care | 22 | 252 |
| leśn. | Leśnictwo / Forestry | 21 | 162 |
| lit. | Literatura / Literature | 93 | 1173 |
| lot. | Lotnictwo / Aviation | 204 | 446 |
| łowiect. | Łowiectwo / Hunting | 7 | 128 |
| mat. | Matematyka / Mathematics | 222 | 774 |
| mebel | Meble / Furniture | 33 | 224 |
| med. | Medycyna / Medicine | 1052 | 800 |
| MedWet | Medycyna weterynaryjna / Veterinary Medicine | 8 | 164 |
| meteo. | Meteorologia / Meteorology | 150 | 218 |
| mineral. | Mineralogia / Mineralogy | 15 | 147 |
| mitol. | Mitologia / Mythology | 218 | 488 |
| mot. | Motoryzacja / Automotive Engineering | 168 | 475 |
| muz. | Muzyka / Music | 266 | 1668 |
| mykol | Mykologia / Mycology | 20 | 109 |
| narko. | Narkotyk / Drugs | 13 | 254 |
| narzęd. | Narzędzia / Tools | 105 | 461 |
| nauka | Nauka / Academic Disciplines | 129 | 1509 |
| naut. | Nautyka / Nautical Science | 313 | 209 |
| neol. | Neologizm / Neologisms | 1 | 195 |
| nieruch. | Nieruchomość / Real Estate | 19 | 232 |
| nukl. | Nukleonika, Technika jądrowa / Nuclear Engineering | 4 | 171 |
| odzież | Odzież a moda / Clothing, Fashion | 269 | 437 |
| ogro. | Ogrodnictwo / Horticulture | 31 | 237 |
| onom. | Onomastyka / Names of Persons | 4 | 208 |
| optyka | Optyka / Optics | 27 | 161 |
| philos. | Filozofia / Philosophy | 50 | 901 |
| piwo | Piwowarstwo / Brewing | 15 | 157 |
| podróż | Słownictwo związane z podróżą / Travellers vocabulary | 41 | 670 |
| pol. | Polityka / Politics | 465 | 938 |
| PożRatun | Straż Pożarna & Ratunkowa / Firefighting & Rescue | 1 | 126 |
| prawo | Prawo / Law | 576 | 580 |
| przem | Przemysł / Industry | 14 | 478 |
| przysł. | Przysłowie / Proverb | 42 | 589 |
| psych. | Psychologia / Psychology | 21 | 882 |
| ptak | Ptak / Ornithology | 519 | 139 |
| rach. | Rachunkowość / Accounting | 12 | 401 |
| relig. | Religia / Religion | 613 | 656 |
| retor. | Retoryka / Rhetoric | 1 | 395 |
| roln. | Rolnictwo / Agriculture, Aquaculture | 160 | 269 |
| rower | Rower / Bicycle | 16 | 490 |
| ruch | Ruch drogowy / Traffic | 38 | 301 |
| ryba | Ryba / Ichthyology, fish, fishing | 62 | 107 |
| socjol. | Socjologia / Sociology | 167 | 513 |
| sport | Sport / Sports | 344 | 927 |
| stat. | Statystyka / Statistics | 5 | 320 |
| sztuka | Sztuka / Art | 53 | 1145 |
| taniec | Taniec / Dance | 39 | 379 |
| teatr | Teatr / Theatre | 61 | 486 |
| tech. | Technika / Technology | 410 | 1188 |
| telekom. | Telekomunikacja / Telecommunications | 8 | 517 |
| textil. | Textilia / Textiles, Textile Industry | 22 | 150 |
| transp. | Transport lądowy / Transportation (Land Transport) | 3 | 317 |
| turys. | Turystyka / Travel Industry | 24 | 515 |
| TV | Telewizja i Radio / Radio and Television | 44 | 537 |
| ubez. | Ubezpieczenia / Insurance | 5 | 162 |
| UE | Unia europejska / European Union | 21 | 647 |
| USD | UNESCO Światowe Dziedzictwo / UNESCO World Heritage | 16 | 257 |
| uzbr. | Uzbrojenie / Weapons | 71 | 377 |
| waluta | Waluta / Currencies | 21 | 249 |
| woj. | Wojsko / Military | 477 | 394 |
| wymiary | wymiary / Units, Measures, Weights | 48 | 413 |
| zabaw. | Zabawki / Toys | 34 | 210 |
| zawód | Zawód a rynek pracy / Jobs, Employment Market | 776 | 558 |
| zbroja | Zbroja / Historic Armour | 3 | 127 |
| zegary | Zegary / Watches, Clocks | 23 | 198 |
| zool. | Zoologia / Zoology, Animals | 739 | 647 |
