| Acronym | Sense | Language | Topics | 
|---|---|---|---|
| MSS | Münchener Studien zur Sprachwissenschaft | In German | → Serial publications, periodicals → Language, linguistics, literature  | 
| MSS | Multispectral Scanner | In English | |
| MSS | Midwest Sociological Society | In English | → Organizations and associations → Sociology  | 
| MSS | Maintenance Status System | In English | → Maintenance and logistics | 
| MSS | Mobile Service Structure | In English | |
| MSS | Mobile Servicing System | In English | |
| MSS | Multispectral Scanner System | In English | |
| MSS | Multisystem Software | In English | → Software | 
| MSS | Manufacturers' Standardization Society | In English | → Organizations and associations → Standardization → Engineering, technology  | 
| MSS | Mass Storage Subsystem | In English | |
| MSS | Mechanical Support System | In English | → Mechanical engineering | 
| MSS | Medium/Small Satellite Servicing | In English | → Astronautics | 
| MSS | Meeting Support System | In English | |
| MSS | Message Source Selector | In English | |
| MSS | Mission Specialist Station | In English | |
| MSS | Mission Status Summary | In English | |
| MSSA | MidSouth Sociological Association | In English | → Associations → Sociology  | 
| MSSP | Micronesia and South Pacific Program | In English | → Area studies | 
| MSSP | Mechanical Systems and Signal Processing | In English | → Serial publications, periodicals → Mechanical engineering → Electronics  | 
| MSSP | Mission Suivi et Sécurisation des Projets | In French | → Management | 
| MSSRV | Mars Surface-Sample Return Vehicle | In English | → Vehicle engineering → Astronautics  | 
| MSSTM | Military Space System Technology Model | In English | → Military engineering → Astronautics  | 
| MSSTP | Military Space Systems Technology Plan | In English | → Military engineering → Astronautics  | 
| MST | Mission Scientifique et Technique | In French | → Mathematics and natural sciences → Applied sciences, technology  | 
| MST | Measurement Status Table | In English | |
| MST | Mobile Service Tower | In English | |
| MST | Mountain Standard Time | In English | → Standardization | 
| MST | Maîtrise des Sciences et Techniques | In French | → Higher education, universities → Mathematics and natural sciences → Applied sciences, technology  | 
| MST | Mikrosystemtechnik | In German | → Mechanical engineering → Electronics  | 
| MST | Missile System Test | In English | → Military engineering | 
| MSTCF | Maîtrise des Sciences et Techniques Comptables et Financières | In French | → Higher education, universities → Accounting → Finance  | 
| MSTec | Materials Science and Technology | In English | → Serial publications, periodicals → Materials science  | 
| MSTM | Mixture Stochastic Trajectory Modelling | In English | → Mathematics | 
| MSTP | Medical Scientist Training Program | In English | → Education → Medicine  | 
| MSU | Microwave Sounding Unit | In English | |
| MSU | Main Storage Unit | In English | |
| MSU | Mass Storage Unit | In English | |
| MSU | Measuring Stimuli Unit | In English | |
| MSV | Mission Support Vehicle | In English | → Vehicle engineering | 
| MSV | Monitored Sine Vibration | In English | |
| MSV | Maastrichtse Sport Vereniging | In Dutch | → Organizations and associations → Sport, physical exercises  | 
| MSV | Montfoortse Sport Vereniging | In Dutch | → Organizations and associations → Sport, physical exercises  | 
| MSV | Maassluisse Sport vereniging | In Dutch | → Organizations and associations → Sport, physical exercises  | 
| MSVM | Moeselse Sport Vereniging Moesel | In Dutch | → Organizations and associations → Sport, physical exercises  | 
| MSVP | Master Shuttle Verification Plan | In English | → Astronautics | 
| MSW | Municipal Solid Waste | In English | → Environmental technology, water supply, waste management | 
| MSW | Master of Social Work | In English | → Higher education, universities → Education  | 
| MSW | Masters of Social Work | In English | → Higher education, universities → Social welfare  | 
| MSX | Midcourse Space Experiment | In English | → Astronautics → Astronomy  | 
| MSZ | Membro de Societo Zamenhof | In Esperanto | → Organizations and associations | 
| MSz | Magyar Szabvány | In Hungarian | → Hungary | 
| MSÞ | Mannréttindayfirlýsing Sameinuðu þjóðanna = UDHR | Universala Deklaracio de Homaj Rajtoj | In Esperanto = DUDH | Déclaration Universelle des Droits de l'Homme | In French = UDHR | Universal Declaration of Human Rights | In English = DUDH | Declaración Universal de los Derechos Humanos | In Spanish = GEAU | Giza Eskubideen Aldarrikapen Unibertsala | In Basque = VDLP | Všeobecná deklarace lidských práv | In Czech = UVMR | Universele Verklaring van Menseregte | In Afrikaans = DUDH | Declaración Universal dos Dereitos Humanos | In Galician = DUDU | Dichiarazione Universale dei Diritti Umani | In Italian = PDPC | Powszechna Deklaracja Praw Człowieka | In Polish = DUDH | Declaração Universal dos Direitos Humanos | In Portuguese = DUDO | Declaraţia Universală a Drepturilor Omului | In Romanian = ВДПЧ | Всеобщая декларация прав человека | In Russian = İHEB | İnsan Hakları Evrensel Bildirisi | In Turkish  | 
In Icelandic | → Human rights | 
| MT | Ministerul Transporturilor, Construcţiilor şi Turismului | In Romanian | → Central administration → Transport and postal services → Construction → Tourism  | 
| MT | Monda Turismo | In Esperanto | → Organizations and associations → Tourism  | 
| MT | Magnetic Tape | In English | |
| MT | Metric Ton | In English | |
| MT | Mission Time(r) | In English | |
| MT | Mission Trajectory | In English | → Astronautics | 
| MT | Mobile Transfer | In English | |
| MT | Mobile Transporter | In English | |
| MT | Mountain Time | In English | |
| MT | Mises au Travail | In French | → Labour, labour economics | 
| MT | Mobile Terminal | In English | → Telecommunications | 
| MT | Medical Technology | In English | → Medicine | 
| MT | Manufacturing Technology | In English | → Engineering, technology | 
| MT | Moyenne Tension | In French | → Electrical engineering | 
| MT | Moyen Terme | In French | → Management | 
| MTA | Multimedia Terminals & Applications | In English | → Telecommunications | 
| MTA | Mobilité et Transports Avancés | In French | → Transport and postal services | 
| MTA | Maintenance Task Analysis | In English | → Maintenance and logistics | 
| MTA | Major Test Article | In English | |
| MTA | Mass Thermal Analysis | In English | |
| MTA | Magyar Tudományos Akadémia | In Hungarian | → Hungary | 
| MTA | Maintenance Technical Assistance | In English | → Maintenance and logistics | 
| MTACI | Magyar Tudományos Akadémia Csillagvizsgáló Intézete | In Hungarian | → Hungary | 
| MTAN | Mobile Transaction Authentication Number | In English | → Telecommunications | 
| MTAP | Multitask Analysis Program | In English | |
| MTB | Materials Testing Branch | In English | → Maintenance and logistics → Materials science  | 
| MTBCF | Mean Time Between Critical Failures | In English | → Maintenance and logistics | 
| MTBD | Mean Time Between Demand | In English | |
| MTBE | 甲基叔丁基醚 = MTBE | Metyl-tert-butyleter | In Swedish = МТБЭ | Метил-трет-бутиловый эфир | In Russian = 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 Chinese | → Chemical technology | 
| MTBE | Metyl-tert-butyleter = МТБЭ (look above)  | 
In Swedish | → Chemical technology | 
| MTBE | Methyl-tert-butylether = МТБЭ (look above)  | 
In Dutch | → Chemical technology | 
| MTBE | メチルターシャリーブチルエーテル = МТБЭ (look above)  | 
In Japanese | → Chemical technology | 
| MTBE | Metil-t-butil etere = МТБЭ (look above)  | 
In Italian | → Chemical technology | 
| MTBE | Metyylitertiääributyylieetteri = МТБЭ (look above)  | 
In Finnish | → Chemical technology | 
| MTBE | Methyl Tert-Butyl Ether = МТБЭ (look above)  | 
In English | → Chemical technology | 
| MTBE | Methyl-tert-butylæter = МТБЭ (look above)  | 
In Danish | → Chemical technology | 
| MTBE | Metiel-tersiêre-butieleter = МТБЭ (look above)  | 
In Afrikaans | → Chemical technology | 
| MTBE | Methyl-tert-butylether = МТБЭ (look above)  | 
In German | → Chemical technology | 
| MTBF | Mean Time Between Failure | In English | → Computer science | 
| MTBF | Mean Time Between Failures | In English | → Maintenance and logistics | 
| MTBM | Mean Time Between Maintenance | In English | → Maintenance and logistics | 
| MTBMA | Mean Time Between Maintenance Action | In English | → Maintenance and logistics | 
| MTBR | Mean Time Between Removal | In English | → Maintenance and logistics | 
| MTBR | Mean Time Between Replacement | In English | → Maintenance and logistics | 
| MTC | Man-Tended Capability | In English | |
| MTC | Mercedes Technology Center | In English | |
| MTC | Manual Thrust Controller | In English | → Vehicle engineering | 
| MTC | Manual Traffic Control | In English | → Vehicle engineering → Transport and postal services  | 
| MTC | Master Thrust Control(ler) | In English | → Vehicle engineering | 
| MTC | Mission and Traffic Control | In English | → Transport and postal services | 
| MTC | Microsoft Technology Center | In English | → Computer science | 
| MTCA | Monitor And Test Control Area | In English | |
| MTCR | Missile Technology Control Regime | In English | → Military engineering | 
| MTCU | Magnetic Tape Control Unit | In English | |
| MTD | Meilleure Technique Disponible | In French | → Applied sciences, technology | 
| MTDC | Modified Total Direct Cost | In English | → Prices | 
| MTDM | Mechanics of Time-Dependent Materials | In English | → Serial publications, periodicals → Mechanical engineering  | 
| MTE | Maintenance Test Equipment | In English | → Maintenance and logistics | 
| MTE | Multisystem Test Equipment | In English | |
| MTEC | Maintenance Test Equipment Catalog | In English | → Maintenance and logistics | 
| MTEE | Maintenance Test Equipment, Electrical | In English | → Maintenance and logistics → Electrical engineering  | 
| MTEF | Maintenance Test Equipment, Fluid | In English | → Maintenance and logistics | 
| MTEM | Maintenance Test Equipment Module | In English | → Maintenance and logistics | 
| MTEM | Maintenance Test Equipment, Mechanical | In English | → Maintenance and logistics → Mechanical engineering  | 
| MTEng | Microscale Thermophysical Engineering | In English | → Serial publications, periodicals → Thermodynamics  | 
| MTEO | Maintenance Test Equipment, Optical | In English | → Maintenance and logistics | 
| MTEV | Maladie Thromboembolique Veineuse | In French | → Blood and circulatory system | 
| MTF | Medical Treatment Facility | In English | → Medicine | 
| MTFF | Man-Tended Free-Flyer | In English | |
| MTFF | Man-Tended Free Flyer | In English | |
| MTFO | Modular Training Field Option | In English | → Education | 
| MTG | Master Timing Generator | In English | |
| MTG | Music Technology Group | In English | → Computer-based techniques → Music  | 
| MTGP | Monitor Table Generator Program | In English | |
| MTGW | Maximum Total Gross Weight | In English | |
| MTH | Mathematics | In English | → Mathematics | 
| MTI | Magyar Távirati Iroda | In Hungarian | → Newspapers, journalism → Hungary  | 
| MTI | Morton Thiokol, Incorporated | In English | |
| MTI | Moving-Target Indicator | In English | |
| MTI | Mission des Transports Intelligents | In French | → Transport and postal services | 
| MTJ | Mobile Tools for Java | In English | → Software | 
| MTK | Mechanical Timekeeping | In English | → Mechanical engineering | 
| MTK | Mechanized Timekeeping | In English | → Mechanical engineering | 
| MTKJ | Międzynarodowy Trybunał Karny dla byłej Jugosławii (www.un.org/icty/) = TPIY | Tribunal Pénal International pour l'ex-Yougoslavie | In French = ICTY | International Criminal Tribunal for the former Yugoslavia | In English = MKSJ | Međunarodni krivični sud za bivšu Jugoslaviju | In Bosnian = TPI | Tribunalul Penal Internaţional pentru fosta Iugoslavie | In Romanian = МБТЮ | Международный трибунал по бывшей Югославии | In Russian = MTTJ | Medzinárodný trestný tribunál pre bývalú Juhosláviu | In Slovak = МНТБЮ | Международен наказателен трибунал за бивша Югославия | In Bulgarian = TPII | Tribunal Penal Internacional per a l'antiga Iugoslàvia | In Catalan = IStGHJ | Internationaler Strafgerichtshof für das ehemalige Jugoslawien | In German = TPIY | Tribunal Penal Internacional para la ex Yugoslavia | In Spanish = TPIY | Tribunal Penal Internacional para a antiga Jugoslávia | In Portuguese = МТКЮ | Міжнародний трибунал по колишній Югославії | In Ukrainian  | 
In Polish | → United Nations → 349  | 
| MTKR | Międzynarodowy Trybunał Karny dla Rwandy (www.ictr.org) = ICTR | International Criminal Tribunal for Rwanda | In English = TPIR | Tribunal Penal Internacional para Ruanda | In Spanish = TPIR | Tribunal Pénal International pour le Rwanda | In French = MTTR | Medzinárodný Trestný Tribunál pre Rwandu | In Slovak  | 
In Polish | → United Nations → 349  | 
| MTL | Main Transfer Line | In English | |
| MTL | Maaseudun Työnantajaliitto | In Finnish | → Organizations and associations → Labour, labour economics  | 
| mTLD | mobile Top Level Domain | In English | → Networks, communication → Telecommunications  | 
| MTLP | Monitor Table Listing Program | In English | |
| MTM | Mechanical Test Model | In English | → Mechanical engineering | 
| MTM | Method of Task Measurement | In English | |
| MTM | Methods Time Measurement | In English | |
| MTM | Multiterminal Monitor | In English | → Human-computer interaction | 
| MTMC | Military Traffic Management Command | In English | → Transport and postal services → Military affairs  | 
| MTMO | Mated Test Management Office | In English | |
| MTO | Magnetic Tape Operator | In English | |
| MTO | Master Timing Oscillator | In English | |
| MTO | Maximum Time-Out | In English | |
| MTO | Mission Task Objective | In English | |
| MTO | Mississippi Test Operations | In English | |
| MTO | Modification Task Outline | In English | |
| MTO | Maailma Terviseorganisatsioon = MOS | Monda Organiz(aĵ)o pri Sano | In Esperanto = WHO | World Health Organization | In English = OMS | Organisation Mondiale de la Santé | In Esperanto = OMS | Organizzazione Mondiale della Sanità | In Italian = WGO | Wêreldgesondheidsorganisasie | In Afrikaans = OMS | Organización Mundial de la Salú | In Asturian = СЗО | Световната здравна огранизация | In Bulgarian = SZO | Světová zdravotnická organizace | In Czech = OMS | Organització Mundial de la Salut | In Catalan = OMS | Organización Mundial de la Salud | In Spanish = MOE | Munduko Osasun Erakundea | In Basque = OMS | Organisacion mondiâla de la sandât | In Franco-Provençal = OMS | Organización Mundial da Saúde | In Galician = SZO | Svjetska zdravstvena organizacija | In Croatian = RTD | Rêxistina Tendurustiyê ya Dinyayê | In Kurdish = UMS | Urganizazziun mundiala da la Santaa | In Lombard = PSO | Pasaulio sveikatos organizacija | In Lithuanian = PVO | Pasaules veselības organizācija | In Latvian = ÜST | Ümumdünya Səhiyyə Təşkilatı | In Turkish  | 
In Estonian | → United Nations → Medicine  | 
| MTOGW | Maximum Takeoff Gross Weight | In English | → Aeronautics, aircraft → Astronautics  | 
| mTOR | Mammalian Target Of Rapamycin | In English | → Biochemistry, biophysics → Mammals  | 
| MTOW | Maximum Takeoff Weight | In English | → Aeronautics, aircraft → Astronautics  | 
| MTP | Mesures Techniques de Protection | In French | |
| MTP | Manufacturing Technical Procedure | In English | → Engineering, technology | 
| MTP | Master Test Plan | In English | |
| MTP | Mission Test Plan | In English | |
| MTPE | Mission To Planet Earth | In English | → Planets and satellites → Astronautics  | 
| MTPTC | Ministère des Travaux Publics, Transports et Communications | In French | → Central administration → Civil engineering → Civil engineering and land transport  | 
| MTQ | Ministère des Transports du Québec | In French | → Central administration → Transport and postal services → Canada  | 
| MTR | Magnetresonanz-Tomografie | In German | → Mathematics and natural sciences → Applied sciences, technology  | 
| MTR | Magnetic Tape Recorder | In English | |
| MTR | Music Theatre | In English | → Music → Theatre  | 
| MTRD | Master Test Requirement Document | In English | |
| MTRO | Middelbaar Toeristisch en Recreatief Onderwijs | In Dutch | → Education | 
| MTS | Methods for Testing & Specification | In English | |
| MTS | Magnetic Tape Station | In English | |
| MTS | Magnetic Tape System | In English | |
| MTS | Main Thruster Subsystem | In English | → Vehicle engineering | 
| MTS | Master Timing System | In English | |
| MTS | Metric Time System | In English | |
| MTS | Mobile Tracking Station | In English | |
| MTS | Motor-Operated Transfer Switch | In English | |
| MTS | Międzynarodowy Trybunał Sprawiedliwości (www.icj-cij.org) = CIJ | Cour Internationale de Justice | In French = CIJ | Corte Internacional de Justicia | In Spanish = ICJ | International Court of Justice | In English = CIJ | Corte Internacional de Justiça | In Portuguese = CIJ | Cort Internacional de Justícia | In Catalan = MSD | Mezinárodní soudní dvůr | In Czech = IGH | Internationaler Gerichtshof | In German = ΔΔΔ | Διεθνές Δικαστήριο της Δικαιοσύνης | In Greek = IK | Internacia Kortumo | In Esperanto = ICJ | 국제사법재판소 | In Korean = TTT | Tarptautinis Teisingumo Teismas | In Lithuanian = MSD | Medzinárodný súdny dvor | In Slovak = МСП | Међународни суд правде | In Serbian = MSP | Međunarodni sud pravde | In Serbo-Croatian  | 
In Polish | → International relations → Law, jurisprudence  | 
| MTS | Middelbare Technische School | In Dutch | → Specialized or polytechnical colleges | 
| MTS | Michigan Terminal System | In English | → Operating systems | 
| MTS | Mobile Telephone Service | In English | → Telecommunications | 
| MtSOM | Mount Stromlo Observatory Mimeographs | In English | → Serial publications, periodicals → Astronomy  | 
| MtSRe | Mount Stromlo Observatory Reprints | In English | → Serial publications, periodicals → Astronomy  | 
| MTT | Maximum Touch Temperature | In English | |
| MTT | Mobile Training Team | In English | → Education | 
| MTTA | Mean Time To Accomplish | In English | |
| MTTE | Mean Time To Exchange | In English | → Maintenance and logistics | 
| MTTF | Mean Time To Failure | In English | → Maintenance and logistics | 
| MTTFF | Mean Time To First Failure | In English | → Maintenance and logistics | 
| MTTJ | Medzinárodný trestný tribunál pre bývalú Juhosláviu (www.un.org/icty/) = MTKJ, TPIY, ICTY, MKSJ, МБТЮ, МНТБЮ, TPII, IStGHJ, МТКЮ (look above)  | 
In Slovak | → United Nations → 349  | 
| MTTR | Mean Time To Repair | In English | → Maintenance and logistics | 
| MTTR | Medzinárodný Trestný Tribunál pre Rwandu (www.ictr.org) = MTKR, ICTR, TPIR (look above)  | 
In Slovak | → United Nations → 349  | 
| MTTRF | Mean Time To Restore Function | In English | → Maintenance and logistics | 
| MTU | Magnetic Tape Unit | In English | |
| MTU | Master Timing Unit | In English | |
| MTU | Mobile Training Unit | In English | → Education | 
| MTV | Mass Transfer Vehicle | In English | → Vehicle engineering | 
| MTVC | Manual Thrust Vector Control | In English | → Vehicle engineering | 
| MTW | Maximum Taxi Weight | In English | → Vehicle engineering | 
| MtWAR | Mount Wilson and Palomar Observatory Annual Report | In English | → Serial publications, periodicals → Astronomy  |