Subject  | Description | Entries | Users |
| aero. | Aeronautica / Aviation | 38 | 477 |
| agr. | Agraria / Agriculture, Aquaculture | 39 | 293 |
| aliment. | Industria Alimentare / Foodstuffs Industry | 15 | 309 |
| alp. | Alpinismo / Climbing, Mountaineering | 7 | 259 |
| amb. | Ambiente / Ecology, Environment | 9 | 734 |
| amm. | Amministrazione (pubblica) / (Public) Administration | 31 | 426 |
| anat. | Anatomia / Human Anatomy | 182 | 527 |
| arald. | Araldica / Heraldry | 3 | 107 |
| archeo. | Archeologia / Archaeology | 14 | 372 |
| archi. | Architettura / Architecture | 88 | 484 |
| armi | Armi / Weapons | 30 | 394 |
| arte | Arte / Art | 48 | 1197 |
| assic. | Assicurazioni / Insurance | 6 | 172 |
| astron. | Astronomia / Astronomy | 52 | 620 |
| astronau | Astronautica / Astronautics | 4 | 342 |
| attr. | Attrezzo / Tools | 33 | 491 |
| audio | Audiologia, Acustica / Audiology | 4 | 208 |
| automob. | Automobili / Automotive Engineering | 40 | 506 |
| bibl. | Bibbia / Biblical | 4 | 384 |
| bici | Bicicletta / Bicycle | 1 | 523 |
| biochim. | Biochimica / Biochemistry | 33 | 333 |
| biol. | Biologia / Biology | 129 | 688 |
| biotec. | Biotecnologia / Biotechnology | 2 | 291 |
| birr. | Birrificazione / Brewing | 2 | 164 |
| bot. | Botanica / Botany, Plants | 285 | 411 |
| chim. | Chimica / Chemistry | 335 | 550 |
| cit. | Citazione / Quotation | 1 | 484 |
| comm. | Commercio, distribuzione / Commerce | 117 | 559 |
| comp. | Computer / Computer Sciences | 64 | 1648 |
| contab. | Contabilità / Accounting | 7 | 419 |
| cosm. | Cosmetica e cura del corpo / Cosmetics & Body Care | 30 | 265 |
| danza | Danza / Dance | 2 | 388 |
| dir. | Diritto / Law | 134 | 594 |
| econ. | Economia / Economy | 53 | 931 |
| edil. | Edilizia / Construction | 25 | 338 |
| editoria | Editoria / Publishing | 12 | 263 |
| educ. | Educazione / Education | 49 | 1235 |
| elettr. | Elettronica, elettrotecnica / Electrical Engin., Electronics | 42 | 698 |
| enol. | Enologia / Oenology | 6 | 127 |
| entom. | Entomologia / Entomology | 30 | 109 |
| equit. | Equitazione, Cavalli / Equestrianism, Horses | 7 | 132 |
| esot. | Esoterismo / Esotericism | 13 | 241 |
| etn. | Etnologia / Ethnology | 59 | 282 |
| F | Nomi e titoli in letteratura, film, tv, arte / Fiction: Names and Titles in Literature, Film, TV, Arts | 208 | 816 |
| farm. | Farmacia / Pharmacy | 42 | 293 |
| filat. | Filatelia / Philately | 5 | 63 |
| film | Film / Film | 89 | 1300 |
| filos. | Filosofia / Philosophy | 57 | 962 |
| fin. | Finanza / Finance | 60 | 592 |
| fis. | Fisica / Physics | 87 | 811 |
| fonet. | Fonetica / Phonetics | 8 | 411 |
| foto. | Fotografia / Photography | 17 | 831 |
| fumetti | Fumetti e Cartoni Animati / Comics and Animated Cartoons | 37 | 358 |
| gastr. | Gastronomia / Gastronomy, Cooking | 355 | 671 |
| geogr. | Geografia / Geography | 227 | 876 |
| geol. | Geologia / Geology | 53 | 302 |
| gioca. | Giocattoli / Toys | 5 | 227 |
| giochi | Giochi / Games | 27 | 905 |
| gior. | Giornalismo / Journalism | 12 | 447 |
| idro. | Idrologia & Idrogeologia / Hydrology & Hydrogeology | 9 | 109 |
| immob. | Immobili / Real Estate | 6 | 240 |
| ind. | Industria / Industry | 13 | 507 |
| ingeg. | Ingegneria / Engineering | 1 | 947 |
| internet | Internet / Internet | 15 | 1463 |
| ittiol. | Ittiologia, pesca / Ichthyology, fish, fishing | 52 | 113 |
| lett. | Letteratura / Literature | 208 | 1252 |
| libri | Libri / Library Science | 7 | 193 |
| ling. | Linguistica / Linguistics | 109 | 1428 |
| loc. | Locuzione / Idiom | 39 | 709 |
| market. | Marketing / Marketing, Advertising | 1 | 553 |
| mat. | Matematica / Mathematics | 122 | 821 |
| material | Scienza dei Materiali / Materials Science | 3 | 289 |
| med. | Medicina / Medicine | 482 | 845 |
| meteo. | Meteorologia / Meteorology | 40 | 228 |
| micol. | Micologia / Mycology | 5 | 114 |
| mil. | Arte militare / Military | 81 | 411 |
| mineral. | Mineralogia / Mineralogy | 21 | 153 |
| miniera | Miniera / Mining & Drilling | 3 | 113 |
| mitol. | Mitologia / Mythology | 71 | 513 |
| mobili | Mobili / Furniture | 18 | 234 |
| mus. | Musica / Music | 153 | 1748 |
| naut. | Nautica / Nautical Science | 69 | 220 |
| neol. | Neologismo / Neologisms | 2 | 194 |
| nucl. | Ingegneria Nucleare / Nuclear Engineering | 1 | 182 |
| odonto | Odontoiatria / Dental Medicine | 17 | 132 |
| onomast. | Onomastica / Names of Persons | 7 | 220 |
| orn. | Ornitologia / Ornithology | 391 | 150 |
| orol. | Orologi / Watches, Clocks | 8 | 206 |
| ortic. | Orticoltura / Horticulture | 4 | 249 |
| ottica | Ottica / Optics | 5 | 173 |
| pol. | Politica / Politics | 152 | 1000 |
| prof. | Professione / Jobs, Employment Market | 171 | 588 |
| prov. | Proverbio / Proverb | 15 | 623 |
| psic. | Psicologia / Psychology | 55 | 920 |
| RadioTV | Televisione e radio / Radio and Television | 4 | 563 |
| relig. | Religione / Religion | 161 | 693 |
| retor. | Retorica / Rhetoric | 5 | 410 |
| scienza | Scienza / Academic Disciplines | 124 | 1624 |
| selv. | Selvicoltura / Forestry | 13 | 173 |
| SocFuoc. | Servizio di soccorso e protezione antincendio / Firefighting & Rescue | 6 | 132 |
| sociol. | Sociologia / Sociology | 34 | 547 |
| spec. | Di linguaggio speciale / Specialized Term | 5 | 368 |
| sport | Sport / Sports | 160 | 965 |
| stat. | Statistica / Statistics | 10 | 352 |
| stor. | Storia / History | 81 | 1341 |
| stupef. | Stupefacenti / Drugs | 5 | 271 |
| T | T / Taxonomic terms for animals, plants and fungi (incl. varieties and breeds) | 1024 | 9 |
| teatro | Teatro / Theatre | 36 | 502 |
| tec. | Tecnica / Technology | 100 | 1260 |
| TecMed. | Tecnologia Medica / Medical Engineering & Imaging | 6 | 257 |
| telecom. | Telecomunicazione / Telecommunications | 11 | 544 |
| tessili | Tessili, Industria tessile / Textiles, Textile Industry | 10 | 159 |
| tip. | Tipografia / Print, Typography, Layout | 4 | 280 |
| TM | Marchi Registrati [©™®] / Trademarks, Brand Names | 1 | 105 |
| traff. | Traffico / Traffic | 62 | 324 |
| trasp. | Trasporti (trasporto via terra) / Transportation (Land Transport) | 4 | 340 |
| treno | Treno / Rail | 9 | 220 |
| turismo | Turismo / Travel Industry | 25 | 538 |
| unità | Unità di misura / Units, Measures, Weights | 51 | 433 |
| urban. | Urbanistica / Urban Planning | 12 | 231 |
| valuta | Valuta / Currencies | 2 | 263 |
| vest. | Vestiti e moda / Clothing, Fashion | 66 | 459 |
| VetMed. | Medicina Veterinaria / Veterinary Medicine | 1 | 169 |
| VocVia. | Vocabolario di viaggio / Travellers vocabulary | 4 | 701 |
| zool. | Zoologia / Zoology, Animals | 504 | 666 |
