

| Acronym | Sense | Language | Topics | 
|---|---|---|---|
| TNT | Trinitrotolueno = TNT | Trinitrotoluol | In German = TNT | Trinitrotoluè | In Catalan = TNT | Trinitrotoluen | In Czech = TNT | Trinitrotoluene | In English = TNT | Trinitrotolueno | In Esperanto = TNT | Trinitrotoluenori | In Basque = TNT | ترینیتروتولوئن | In Persian = TNT | Trinitrotoluène | In French = TNT | Trinitrotoluene | In Italian = TNT | Trinitrotoluolas | In Lithuanian = TNT | Trinitrotolueen | In Dutch = TNT | Trinitrotoluen | In Nynorsk = TNT | Trinitrotoluen | In Norwegian = TNT | Trinitrotolueno | In Portuguese = TNT | Trinitrotoluen | In Romanian = TNT | Тринитротолуол | In Russian = TNT | Trinitrotoluen | In Slovenian = ТНТ | Тринитротоулен | In Serbian = TNT | ทีเอ็นที | In Thai = TNT | Trinitrotoluen | In Turkish = ТНТ | Тринітротолуол | In Ukrainian | In Spanish | → Chemicals → Military engineering | 
| TNT | Trinitrotoluenori = ТНТ (look above) | In Basque | → Chemicals → Military engineering | 
| TNT | ترینیتروتولوئن = ТНТ (look above) | In Persian | → Chemicals → Military engineering | 
| TNT | Trinitrotoluène = ТНТ (look above) | In French | → Chemicals → Military engineering | 
| TNT | Trinitrotoluene = ТНТ (look above) | In Italian | → Chemicals → Military engineering | 
| TNT | Trinitrotoluolas = ТНТ (look above) | In Lithuanian | → Chemicals → Military engineering | 
| TNT | Trinitrotolueen = ТНТ (look above) | In Dutch | → Chemicals → Military engineering | 
| TNT | Trinitrotoluen = ТНТ (look above) | In Nynorsk | → Chemicals → Military engineering | 
| TNT | Trinitrotoluen = ТНТ (look above) | In Norwegian | → Chemicals → Military engineering | 
| TNT | Trinitrotolueno = ТНТ (look above) | In Portuguese | → Chemicals → Military engineering | 
| TNT | Trinitrotoluen = ТНТ (look above) | In Romanian | → Chemicals → Military engineering | 
| TNT | Тринитротолуол = ТНТ (look above) | In Russian | → Chemicals → Military engineering | 
| TNT | Trinitrotoluen = ТНТ (look above) | In Slovenian | → Chemicals → Military engineering | 
| TNT | ทีเอ็นที = ТНТ (look above) | In Thai | → Chemicals → Military engineering | 
| TNT | Trinitrotoluen = ТНТ (look above) | In Turkish | → Chemicals → Military engineering | 
| TPC | Turkish Petroleum Company | In English | → Organizations and associations → 665 → Turkey | 
| TPO | Thermoplastic Olefin | In English | → Plastic industry | 
| UDMH | Unsymmetrical Dimethylhydrazine | In English | |
| UDMH/H | Unsymmetrical Dimethylhydrazine Hydrazine Blend | In English | |
| UFCC | Union Française du Commerce Chimique | In French | → Organizations and associations → Trade → Food technology → France | 
| UIC | Union des Industries Chimiques (www.uic.fr) | In French | → Organizations and associations → France | 
| UIMM | Union des Industries et Métiers de la Métallurgie (www.uimm.fr) | In French | → Organizations and associations → Metallurgy → France | 
| UNCGFL | Union Nationale de Commerce en Gros de Fruits et Légumes | In French | → Organizations and associations → Trade → Food technology | 
| UPGCAF | Union Professionnelle des Grossistes en Confiserie et Alimentation Fine | In French | → Organizations and associations → Food technology | 
| USMAG | Union Syndicale des Marchands d'Abats en Gros | In French | → Organizations and associations → Food technology | 
| USWA | United Steelworkers of America (www.uswa.org) | In English | → Organizations and associations → Labour, labour economics → Metallurgy → United States | 
| VACH | Véhicule d'Appui Chimique | In French | → Automobile manufacturing → Firefighting | 
| VALORIAL | VALOrisation pour la Recherche et l'Innovation ALimentaire | In French | → Agricultural sciences → Food technology | 
| VC-ATOD | Virtual Clearinghouse on Alcohol, Tobacco, and Other Drugs = CV-ATOD | Centro Virtual de Información sobre Alcohol, Tabaco y otras Drogas | In Spanish | In English | → Libraries → Networks, communication → 6635 → 6639 → Pathology | 
| VDA | Vapor-Deposited Aluminum | In English | → Metallurgy | 
| VDQS | Vin Délimité de Qualité Supérieure | In French | → Beverage industry | 
| VFG | Versuchsanstalt für Getreideverarbeitung (www.vfg.or.at) | In German | → Research institutes → Agricultural sciences → Food technology → Austria | 
| VGL | Vereniging van Grootwinkelbedrijven in Levensmiddelen | In Dutch | → Organizations and associations → Food technology → Trade | 
| VOC | Volatile Organic Compounds | In English | → Chemicals | 
| VOG | Verein Österreichischer Gießereifachleute (www.voeg.at) | In German | → Organizations and associations → Metallurgy → Austria | 
| VPPAW | Variable-Polarity Plasma Arc Welding | In English | → Metallurgy | 
| VSG | Verein Slowakischer Gießereifachleute | In German | → Organizations and associations → Metallurgy | 
| VWA | Voedsel en Waren Autoriteit (www.vwa.nl) | In Dutch | → Central administration → Consumerism → Food technology → Netherlands | 
| WAC | Water Aluminium Chloride | In English | → Chemicals → Environmental technology, water supply, waste management | 
| WBMS | World Bureau of Metal Statistics | In English | → Organizations and associations → Metallurgy | 
| WCB | Waukesha Cherry-Burrell (www.gowcb.com) | In English | |
| WFC | World Foundry Congress | In English | → Congresses → Metallurgy | 
| WFNA | White Fuming Nitric Acid | In English | |
| WGSU | Water-Glycol Service Unit | In English | |
| XPS | Extruded Polystyrene | In English | → Chemicals → Plastic industry | 
| YAG | Yttrium Aluminum Garnet | In English | → Metallurgy | 
| YAG | Yttrium-Aluminum-Garnet | In English | → Optics | 
| YIG | Yttrium-Iron-Garnet | In English | |
| ZCHFP | Zväz chemického a farmaceutického priemyslu Slovenskej republiky (www.zchfp.sk) | In Slovak | → Associations → Pharmacology, toxicology → Slovakia | 
| ZMetl | Zeitschrift fur Metallkunde | In German | → Serial publications, periodicals → Metallurgy | 
| ZOPA | Zinc Oxide Producers Association | In English | → Associations → Chemicals → Metallurgy | 
| ZWer | Zeitschrift Werkstofftechnik | In German | → Serial publications, periodicals → 666 | 
| ГИ | Гликемијски индекс = GI | Glycemic Index | In English = GI | Glykemický index | In Czech = GI | Glykæmisk indeks | In Danish = GI | Glykämischer Index | In German = GI | Glükeemiline indeks | In Estonian = GI | Glykeeminen indeksi | In Finnish = IG | Índice glicêmico | In Portuguese = GI | Glisemik indeks | In Turkish | In Serbian | → Nutrition → Food technology | 
| ДДТ | дихлоро-дифенил-трихлороетан = DDT | Dichlorodiphényltrichloréthane | In French = DDT | Dihlor-difenil-trihloretan | In Bosnian = DDT | Dicloro-difenil-tricloroetà | In Catalan = DDT | Dichlordiphenyltrichlorethan | In Danish = DDT | Dichlordiphenyltrichlorethan | In German = DDT | Dichlorodiphenyltrichloroethane | In English = DDT | Diklor-difenil-trikloretano | In Esperanto = DDT | Dicloro-difenil-tricloroetano | In Spanish = DDT | Diklorodifenüültrikloroetaan | In Estonian = DDT | Dikloori-difenyyli-trikloorietaani | In Finnish = די די טי | דיכלורו-דיפניל-טריכלורו-אתאן | In Hebrew = DDT | Diklór-difenil-triklór-etán | In Hungarian = DDT | Diclorodifeniltricloroetano | In Italian = DDT | Dichloro-Difenil-Trichloroetanas | In Lithuanian = DDT | Dichloordifenyltrichloorethaan | In Dutch = DDT | Diklor-difenyl-trikloretan | In Nynorsk = DDT | Dichlorodifenylotrichloroetan | In Polish = DDT | Dicloro-Difenil-Tricloroetano | In Portuguese = DDT | Diclor-Difenil-Tricloretan | In Romanian = ДДТ | ДихлорДифенилТрихлорметилметан | In Russian = DDT | Dichlórdifenyltrichlóretán | In Slovak = DDT | Dikloro-Difenil-Trikloroetan | In Slovenian = ДДТ | Дихлор-дифенил-трихлоретан | In Serbian = DDT | Diklordifenyltrikloretan | In Swedish = DFS | Deutsche Flugsicherung GmbH | In German | In Bulgarian | → Chemicals → Agricultural sciences | 
| ДДТ | ДихлорДифенилТрихлорметилметан = DDT, די די טי, DFS (look above) | In Russian | → Chemicals → Agricultural sciences | 
| ДДТ | Дихлор-дифенил-трихлоретан = DDT, די די טי, DFS (look above) | In Serbian | → Chemicals → Agricultural sciences | 
| ЕОВС | Европейската общност за въглища и стомана = EKSF | Europæiske Kul- og Stålfællesskab | In Danish = ESUO | Evropské společenství uhlí a oceli | In Czech = EZUČ | Europska zajednica za ugljen i čelik | In Croatian = CECA | Comunidad Europea del Carbón y del Acero | In Spanish = CECA | Communauté Européenne du Charbon et de l'Acier | In French = EGKS | Europese Gemêenschap voo Kooln en Stoal | In Vlaams = ECSC | European Coal and Steel Community | In English = CECA | Comunitat Europea del Carbó i de l'Acer | In Catalan = EGKS | Europäische Gemeinschaft für Kohle und Stahl | In German = CECA | Comunidade Europea do Carbón e do Aceiro | In Galician = CECA | Comunità Europea del Carbone e dell'Acciaio | In Italian = EWWiS | Europejska Wspólnota Węgla i Stali | In Polish = CECA | Comunautat Europèa del Carbon e de l'Acièr | In Occitan = EKSF | Det europeiske kull- og stålfellesskap | In Norwegian = EGKS | Europese Gemeenschap voor Kolen en Staal | In Dutch = ESZAK | Európai Szén- és Acélközösség | In Hungarian = CECA | Comunidade Europeia do Carvão e do Aço | In Portuguese = CECO | Comunitatea Europeană a Cărbunelui şi Oţelului | In Romanian = ЕОУС | Европейское объединение угля и стали | In Russian = ESUO | Európske spoločenstvo pre uhlie a ocel | In Slovak = EHYT | Euroopan hiili- ja teräsyhteisö | In Finnish = EKSG | Europeiska kol- och stålgemenskapen | In Swedish = EAPB | Europos anglių ir plieno bendrija | In Lithuanian | In Bulgarian | → International relations → International economic cooperation → Mining → Metallurgy | 
| ЕОУС | Европейское объединение угля и стали = ЕОВС, EKSF, ESUO, EZUČ, CECA, EGKS, ECSC, EWWiS, ESZAK, CECO, EHYT, EKSG, EAPB (look above) | In Russian | → International relations → International economic cooperation → Mining → Metallurgy | 
| МТБЭ | Метил-трет-бутиловый эфир = MTBE | 甲基叔丁基醚 | In Chinese = MTBE | Metyl-tert-butyleter | In Swedish = MTBE | Methyl-tert-butylether | In Dutch = MTBE | メチルターシャリーブチルエーテル | In Japanese = MTBE | Metil-t-butil etere | In Italian = MTBE | Metyylitertiääributyylieetteri | In Finnish = MTBE | Methyl Tert-Butyl Ether | In English = MTBE | Methyl-tert-butylæter | In Danish = MTBE | Metiel-tersiêre-butieleter | In Afrikaans = MTBE | Methyl-tert-butylether | In German | In Russian | |
| ОПЕК | Организација на земји извознички на нафта и нафтени деривати = OPEC | Organization of the Petroleum Exporting Countries | In English = OPEP | Organisation des Pays Exportateurs de Pétrole | In French = OPEC | Organization of Petroleum Exporting Countries | In English = OPEL | Organizaĵo de Petrol-Eksportaj Landoj | In Esperanto = OPEP | Organização dos Países Exportadores de Petróleo | In Portuguese = OPEP | Organización de Países Esportadores de Petroleu | In Asturian = OPEP | Organización de Países Exportadores de Petróleo | In Spanish = OPEP | Organització de Països Exportadors de Petroli | In Catalan | In Macedonian | → Organizations and associations → Mining → 665 | 
| ПЛА | Полилактид = PLA | Polylactic Acid | In English = PLA | Polilaktoacido | In Esperanto = PLA | Polylactide | In German = PLA | Polilaktyd | In Polish = PLA | Polylaktid | In Swedish | In Russian | → Chemicals → Plastic industry | 
| ТНТ | Тринитротоулен = TNT (look above) | In Serbian | → Chemicals → Military engineering | 
| ТНТ | Тринітротолуол = TNT (look above) | In Ukrainian | → Chemicals → Military engineering | 
| ХТТМ | Химия и технология топлив и масел = KTTM | Khimiia i Tekhnologiia Topliv i Masel | In Russian | In Russian | → Serial publications, periodicals | 
| די די טי | דיכלורו-דיפניל-טריכלורו-אתאן = ДДТ, DDT, DFS (look above) | In Hebrew | → Chemicals → Agricultural sciences | 
| שה״ו | שיבת החרס והמסגר | In Hebrew | → Metallurgy | 
| م ش ف | مجموعة المكتب الشريف للفوسفاط = OCP | Office Chérifien des Phosphates | In French | In Arabic | → Mining |