Subject  | Description | Entries | Users |
| admin | Administracja publiczna / (Public) Administration | 114 | 422 |
| akust. | Akustyka / Audiology | 1 | 206 |
| anat. | Anatomia / Human Anatomy | 291 | 522 |
| arch. | Architektura / Architecture | 132 | 482 |
| archeo. | Archeologia / Archaeology | 38 | 368 |
| astron. | Astronomia / Astronomy | 111 | 611 |
| astronau. | Astronautyka / Astronautics | 31 | 336 |
| bank. | Bankowość / Finance | 325 | 591 |
| bibl. | Biblijny / Biblical | 31 | 383 |
| biblio. | Bibliotekoznawstwo / Library Science | 5 | 189 |
| biochem. | Biochemia / Biochemistry | 23 | 329 |
| biol. | Biologia / Biology | 185 | 682 |
| biotech. | Biotechnologia / Biotechnology | 4 | 288 |
| bot. | Botanika / Botany, Plants | 568 | 410 |
| bud. | Budownictwo / Construction | 86 | 336 |
| chem. | Chemia / Chemistry | 324 | 545 |
| dent. | Dentystyka / Dental Medicine | 29 | 131 |
| druk. | Drukarstwo / Print, Typography, Layout | 30 | 278 |
| dzienn. | Dziennikarstwo / Journalism | 70 | 443 |
| eduk. | Edukacja / Education | 143 | 1220 |
| ekol. | Ekologia / Ecology, Environment | 68 | 729 |
| elektr. | Elektrotechnika, Elektronika / Electrical Engin., Electronics | 24 | 688 |
| enol. | Enologia / Oenology | 27 | 127 |
| entom. | Entomologia, Owadoznawstwo / Entomology | 105 | 109 |
| etno. | Etnologia / Ethnology | 237 | 283 |
| ezot. | Ezoteryka / Esotericism | 14 | 238 |
| F | Dzieła fikcji / Fiction: Names and Titles in Literature, Film, TV, Arts | 135 | 811 |
| farm. | Farmacja / Pharmacy | 72 | 292 |
| filat. | Filatelistyka / Philately | 1 | 63 |
| film | Film / Film | 141 | 1295 |
| fiz. | Fizyka / Physics | 167 | 803 |
| fonet. | Fonetyka / Phonetics | 6 | 408 |
| foto. | Fotografia / Photography | 61 | 830 |
| gastr. | Gastronomia / Gastronomy, Cooking | 682 | 665 |
| geogr. | Geografia / Geography | 835 | 867 |
| geol. | Geologia / Geology | 101 | 296 |
| górn. | Górnictwo / Mining & Drilling | 33 | 113 |
| gospod. | Gospodarka / Economy | 103 | 921 |
| gramat. | Gramatyka / Linguistics | 117 | 1414 |
| gry | Gry / Games | 53 | 897 |
| handel | Handel / Commerce | 431 | 556 |
| herald. | Heraldyka / Heraldry | 7 | 105 |
| hist. | Historia / History | 195 | 1329 |
| idiom | Idiom / Idiom | 114 | 710 |
| inform. | Informatyka / Computer Sciences | 271 | 1636 |
| internet | Internet / Internet | 85 | 1451 |
| Inżbiom. | Inżynieria biomedyczna / Medical Engineering & Imaging | 3 | 252 |
| inży. | Inżynieria / Engineering | 12 | 937 |
| jeźdź. | Jeźdźiectwo / Equestrianism, Horses | 27 | 133 |
| kolej | Kolej / Rail | 56 | 218 |
| kosm. | Kosmetyka i higiena ciała / Cosmetics & Body Care | 24 | 265 |
| leśn. | Leśnictwo / Forestry | 24 | 172 |
| lit. | Literatura / Literature | 165 | 1237 |
| lot. | Lotnictwo / Aviation | 209 | 467 |
| łowiect. | Łowiectwo / Hunting | 7 | 131 |
| mat. | Matematyka / Mathematics | 227 | 807 |
| mebel | Meble / Furniture | 42 | 231 |
| med. | Medycyna / Medicine | 1078 | 836 |
| MedWet | Medycyna weterynaryjna / Veterinary Medicine | 8 | 170 |
| meteo. | Meteorologia / Meteorology | 157 | 225 |
| mineral. | Mineralogia / Mineralogy | 15 | 152 |
| mitol. | Mitologia / Mythology | 218 | 511 |
| mot. | Motoryzacja / Automotive Engineering | 171 | 498 |
| muz. | Muzyka / Music | 286 | 1737 |
| mykol | Mykologia / Mycology | 31 | 114 |
| narko. | Narkotyk / Drugs | 13 | 267 |
| narzęd. | Narzędzia / Tools | 106 | 482 |
| nauka | Nauka / Academic Disciplines | 164 | 1604 |
| naut. | Nautyka / Nautical Science | 317 | 217 |
| nieruch. | Nieruchomość / Real Estate | 19 | 240 |
| nukl. | Nukleonika, Technika jądrowa / Nuclear Engineering | 4 | 179 |
| odzież | Odzież a moda / Clothing, Fashion | 275 | 459 |
| ogro. | Ogrodnictwo / Horticulture | 32 | 248 |
| onom. | Onomastyka / Names of Persons | 79 | 219 |
| optyka | Optyka / Optics | 28 | 172 |
| philos. | Filozofia / Philosophy | 67 | 953 |
| piwo | Piwowarstwo / Brewing | 15 | 164 |
| podróż | Słownictwo związane z podróżą / Travellers vocabulary | 42 | 696 |
| pol. | Polityka / Politics | 494 | 988 |
| prawo | Prawo / Law | 583 | 588 |
| przem | Przemysł / Industry | 14 | 498 |
| przysł. | Przysłowie / Proverb | 42 | 618 |
| psych. | Psychologia / Psychology | 30 | 914 |
| ptak | Ptak / Ornithology | 560 | 149 |
| rach. | Rachunkowość / Accounting | 12 | 417 |
| relig. | Religia / Religion | 642 | 689 |
| roln. | Rolnictwo / Agriculture, Aquaculture | 168 | 291 |
| rower | Rower / Bicycle | 16 | 516 |
| ruch | Ruch drogowy / Traffic | 40 | 318 |
| ryba | Ryba / Ichthyology, fish, fishing | 72 | 112 |
| socjol. | Socjologia / Sociology | 170 | 541 |
| sport | Sport / Sports | 349 | 958 |
| stat. | Statystyka / Statistics | 5 | 343 |
| sztuka | Sztuka / Art | 54 | 1193 |
| T | T / Taxonomic terms for animals, plants and fungi (incl. varieties and breeds) | 1555 | 6 |
| taniec | Taniec / Dance | 39 | 386 |
| teatr | Teatr / Theatre | 63 | 501 |
| tech. | Technika / Technology | 414 | 1242 |
| telekom. | Telekomunikacja / Telecommunications | 9 | 539 |
| textil. | Textilia / Textiles, Textile Industry | 23 | 158 |
| turys. | Turystyka / Travel Industry | 29 | 534 |
| TV | Telewizja i Radio / Radio and Television | 45 | 559 |
| ubez. | Ubezpieczenia / Insurance | 5 | 169 |
| UE | Unia europejska / European Union | 21 | 672 |
| USD | UNESCO Światowe Dziedzictwo / UNESCO World Heritage | 16 | 263 |
| uzbr. | Uzbrojenie / Weapons | 72 | 390 |
| waluta | Waluta / Currencies | 21 | 262 |
| woj. | Wojsko / Military | 481 | 406 |
| wymiary | wymiary / Units, Measures, Weights | 48 | 429 |
| zabaw. | Zabawki / Toys | 34 | 224 |
| zawód | Zawód a rynek pracy / Jobs, Employment Market | 802 | 584 |
| zbroja | Zbroja / Historic Armour | 3 | 140 |
| zegary | Zegary / Watches, Clocks | 23 | 206 |
| zool. | Zoologia / Zoology, Animals | 757 | 666 |
