

| Acronym | Sense | Language | Topics | 
|---|---|---|---|
| SMSI | Sommet Mondial sur la Société de l'Information | In French | → Telecommunications | 
| SMSM | Seva Missionary Sisters of Mary | In English | → Roman catholic church | 
| SMSPS | Stephan Mueller Special Publication Series | In English | → Serial publications, periodicals → Earth sciences | 
| SMSS | Survivable Missile Surveillance System | In English | → Military engineering | 
| SMT | Supervised Manufacturer's Testing | In English | → Engineering, technology | 
| SMT | Surface Mount Technology | In English | → Electronics | 
| SMT | Society for Music Theory | In English | → Organizations and associations → Music | 
| SMT | Suomen Matkatoimisto | In Finnish | → Tourism → Finland | 
| SMT | Selective Message Transaction | In English | → Telecommunications | 
| SMT | Small Missile Telecamera | In English | → Military engineering | 
| SMT | Surface-Mounted Technology | In English | → Engineering, technology | 
| SMT | Surface Mounting Technology | In English | → Electronics | 
| SMT | Statistical Machine Translation | In English | → Computer-based techniques → Translation → Linguistics | 
| SMTAS | Shuttle Modal Test and Analysis System | In English | → Astronautics | 
| SMTF | Shuttle MIssion Trainer Facility | In English | → Astronautics | 
| SMTP | Simple Mail Transfer Protocol | In English | → Networks, communication | 
| SMU | Singapore Management University | In English | → Management → Economics → Higher education, universities | 
| SMU | Soft Mockup | In English | |
| SMU | Software Management Utility | In English | → Software | 
| SMU | Source Management Utility | In English | |
| SMU | Speaker/Microphone Unit | In English | → Telecommunications | 
| SMUH | Service Médical d'Urgence Héliporté | In French | → Traumatology | 
| SMUR | Service Mobile d'Urgence et de Réanimation | In French | → Traumatology | 
| SMV | Steeds Moedig Voorwaarts | In Dutch | → Organizations and associations → Sport, physical exercises | 
| SMV | Sächsische Modellbahner-Vereinigung (http://smv-aktuell.de) | In German | → Organizations and associations → Entertainment → Rail transport engineering | 
| SMVM | Schéma de Mise en Valeur de la Mer | In French | → Marine research, oceanography | 
| SMVO | Studienschwerpunkt Moderner Vorderer Orient | In German | → Higher education, universities → Area studies | 
| SMVP | Shuttle Master Verification Plan | In English | → Quality management → Astronautics | 
| SMVRD | Shuttle Master Verification Requirements Document | In English | → Quality management → Astronautics | 
| SMVU | Sociedad de Medicina Veterinaria del Uruguay (www.smvu.com.uy) | In Spanish | → Organizations and associations → Veterinary medicine | 
| SMW | Standard Materials Work Sheet | In English | → Materials science | 
| SMW | Strategic Missile Wing | In English | → Military engineering | 
| SMZ | Schweizerischer Fachverband metallverarbeitender Zulieferer (www.smz-net.ch) | In German | → Organizations and associations → Metallurgy → Switzerland | 
| SN | Sûreté Nationale | In French | → Police | 
| SN | Stress Number | In English | |
| SN | Serial Number | In English | |
| SN | Service Note | In English | |
| SN | Space Network | In English | → Astronomy → Astronautics | 
| Sn | Tin = Sn | Tin | In Afrikaans = Sn | قصدير | In Arabic = Sn | Estaño | In Aragonese = Sn | Estañu | In Asturian = Sn | Chayanta | In Aymara = Sn | Qalay | In Azerbaijani = Sn | টিন | In Bengali = Sn | Волава | In Belarusian = Sn | Kalaj | In Bosnian = Sn | Калай | In Bulgarian = Sn | Estany | In Catalan = Sn | Тăхлан | In Chuvash = Sn | Tansan | In Cebuano = Sn | Cín | In Czech = Sn | Stagnu | In Corsican = Sn | Tun | In Welsh = Sn | Tin | In Danish = Sn | Zinn | In German = Sn | Tina | In Estonian = Sn | Κασσίτερος | In Greek = Sn | Estaño | In Spanish = Sn | Stano | In Esperanto = Sn | Eztainu | In Basque = Sn | قلع | In Persian = Sn | Étain | In French = Sn | Stagn | In Friulian = Sn | Stán | In Irish = Sn | Stainney | In Manx = Sn | Estaño | In Galician = Sn | Siak | HAK = Sn | 주석 | In Korean = Sn | Անագ | In Armenian = Sn | Kositar | In Croatian = Sn | Stano | In Ido = Sn | Timah | In Indonesian = Sn | Tin | In Icelandic = Sn | Stagno | In Italian = Sn | בדיל | In Hebrew = Sn | ತವರ | In Kannada = Sn | კალა | In Georgian = Sn | Sten | In Cornish = Sn | Stani | In Swahili = Sn | Озысь | In Komi = Sn | Eten | In Haitian Creole = Sn | Pîl | In Kurdish = Sn | Stannum | In Latin = Sn | Alva | In Latvian = Sn | Zënn | In Letzeburgesh = Sn | Alavas | In Lithuanian = Sn | Stagno | In Ligurian = Sn | tinci | In Lojban = Sn | Ón | In Hungarian = Sn | Калај | In Macedonian = Sn | വെളുത്തീയം | In Malayalam = Sn | टिन | In Marathi = Sn | Amochitl | En Nahuatl = Sn | Tin | In Dutch = Sn | スズ | In Japanese = Sn | Tinn | In Norwegian = Sn | Estam | In Occitan = Sn | Qalay | In Uzbek = Sn | ٹن | PNB = Sn | Tinn | In Low German = Sn | Cyna | In Polish = Sn | Estanho | In Portuguese = Sn | Staniu | In Romanian = Sn | Chayanta | In Quechua = Sn | Олово | In Russian = Sn | Tin | In Saterland Frisian = Sn | Stagnu | In Sicilian = Sn | Cín | In Slovak = Sn | Kositer | In Slovenian = Sn | Калај | In Serbian = Sn | Kalaj | In Serbo-Croatian = Sn | Tina | In Finnish = Sn | Tenn | In Swedish = Sn | வெள்ளீயம் | In Tamil = Sn | తగరము | In Telugu = Sn | ดีบุก | In Thai = Sn | Қалъ | In Tajik = Sn | Kalay | In Turkish = Sn | Олово | In Ukrainian = Sn | قلع | In Urdu = Sn | قەلەي | In Uyghur = Sn | Thiếc | In Vietnamese = Sn | Tin | In Waray-Waray = Sn | צין | In Yiddisch = Sn | 锡 | In Chinese | In English | → Chemistry | 
| Sn | Tin = (look above) | In Afrikaans | → Chemistry | 
| Sn | قصدير = (look above) | In Arabic | → Chemistry | 
| Sn | Estaño = (look above) | In Aragonese | → Chemistry | 
| Sn | Estañu = (look above) | In Asturian | → Chemistry | 
| Sn | Chayanta = (look above) | In Aymara | → Chemistry | 
| Sn | Qalay = (look above) | In Azerbaijani | → Chemistry | 
| Sn | টিন = (look above) | In Bengali | → Chemistry | 
| Sn | Волава = (look above) | In Belarusian | → Chemistry | 
| Sn | Kalaj = (look above) | In Bosnian | → Chemistry | 
| Sn | Калай = (look above) | In Bulgarian | → Chemistry | 
| Sn | Estany = (look above) | In Catalan | → Chemistry | 
| Sn | Тăхлан = (look above) | In Chuvash | → Chemistry | 
| Sn | Tansan = (look above) | In Cebuano | → Chemistry | 
| Sn | Cín = (look above) | In Czech | → Chemistry | 
| Sn | Stagnu = (look above) | In Corsican | → Chemistry | 
| Sn | Tun = (look above) | In Welsh | → Chemistry | 
| Sn | Tin = (look above) | In Danish | → Chemistry | 
| Sn | Zinn = (look above) | In German | → Chemistry | 
| Sn | Tina = (look above) | In Estonian | → Chemistry | 
| Sn | Κασσίτερος = (look above) | In Greek | → Chemistry | 
| Sn | Estaño = (look above) | In Spanish | → Chemistry | 
| Sn | Stano = (look above) | In Esperanto | → Chemistry | 
| Sn | Eztainu = (look above) | In Basque | → Chemistry | 
| Sn | قلع = (look above) | In Persian | → Chemistry | 
| Sn | Étain = (look above) | In French | → Chemistry | 
| Sn | Stagn = (look above) | In Friulian | → Chemistry | 
| Sn | Stán = (look above) | In Irish | → Chemistry | 
| Sn | Stainney = (look above) | In Manx | → Chemistry | 
| Sn | Estaño = (look above) | In Galician | → Chemistry | 
| Sn | Siak = (look above) | [HAK] | → Chemistry | 
| Sn | 주석 = (look above) | In Korean | → Chemistry | 
| Sn | Անագ = (look above) | In Armenian | → Chemistry | 
| Sn | Kositar = (look above) | In Croatian | → Chemistry | 
| Sn | Stano = (look above) | In Ido | → Chemistry | 
| Sn | Timah = (look above) | In Indonesian | → Chemistry | 
| Sn | Tin = (look above) | In Icelandic | → Chemistry | 
| Sn | Stagno = (look above) | In Italian | → Chemistry | 
| Sn | בדיל = (look above) | In Hebrew | → Chemistry | 
| Sn | ತವರ = (look above) | In Kannada | → Chemistry | 
| Sn | კალა = (look above) | In Georgian | → Chemistry | 
| Sn | Sten = (look above) | In Cornish | → Chemistry | 
| Sn | Stani = (look above) | In Swahili | → Chemistry | 
| Sn | Озысь = (look above) | In Komi | → Chemistry | 
| Sn | Eten = (look above) | In Haitian Creole | → Chemistry | 
| Sn | Pîl = (look above) | In Kurdish | → Chemistry | 
| Sn | Stannum = (look above) | In Latin | → Chemistry | 
| Sn | Alva = (look above) | In Latvian | → Chemistry | 
| Sn | Zënn = (look above) | In Letzeburgesh | → Chemistry | 
| Sn | Alavas = (look above) | In Lithuanian | → Chemistry | 
| Sn | Stagno = (look above) | In Ligurian | → Chemistry | 
| Sn | tinci = (look above) | In Lojban | → Chemistry | 
| Sn | Ón = (look above) | In Hungarian | → Chemistry | 
| Sn | Калај = (look above) | In Macedonian | → Chemistry | 
| Sn | വെളുത്തീയം = (look above) | In Malayalam | → Chemistry | 
| Sn | टिन = (look above) | In Marathi | → Chemistry | 
| Sn | Amochitl = (look above) | En Nahuatl | → Chemistry | 
| Sn | Tin = (look above) | In Dutch | → Chemistry | 
| Sn | スズ = (look above) | In Japanese | → Chemistry | 
| Sn | Tinn = (look above) | In Norwegian | → Chemistry | 
| Sn | Estam = (look above) | In Occitan | → Chemistry | 
| Sn | Qalay = (look above) | In Uzbek | → Chemistry | 
| Sn | ٹن = (look above) | [PNB] | → Chemistry | 
| Sn | Tinn = (look above) | In Low German | → Chemistry | 
| Sn | Cyna = (look above) | In Polish | → Chemistry | 
| Sn | Estanho = (look above) | In Portuguese | → Chemistry | 
| Sn | Staniu = (look above) | In Romanian | → Chemistry | 
| Sn | Chayanta = (look above) | In Quechua | → Chemistry | 
| Sn | Олово = (look above) | In Russian | → Chemistry | 
| Sn | Tin = (look above) | In Saterland Frisian | → Chemistry | 
| Sn | Stagnu = (look above) | In Sicilian | → Chemistry | 
| Sn | Cín = (look above) | In Slovak | → Chemistry | 
| Sn | Kositer = (look above) | In Slovenian | → Chemistry | 
| Sn | Калај = (look above) | In Serbian | → Chemistry | 
| Sn | Kalaj = (look above) | In Serbo-Croatian | → Chemistry | 
| Sn | Tina = (look above) | In Finnish | → Chemistry | 
| Sn | Tenn = (look above) | In Swedish | → Chemistry | 
| Sn | வெள்ளீயம் = (look above) | In Tamil | → Chemistry | 
| Sn | తగరము = (look above) | In Telugu | → Chemistry | 
| Sn | ดีบุก = (look above) | In Thai | → Chemistry | 
| Sn | Қалъ = (look above) | In Tajik | → Chemistry | 
| Sn | Kalay = (look above) | In Turkish | → Chemistry | 
| Sn | Олово = (look above) | In Ukrainian | → Chemistry | 
| Sn | قلع = (look above) | In Urdu | → Chemistry | 
| Sn | قەلەي = (look above) | In Uyghur | → Chemistry | 
| Sn | Thiếc = (look above) | In Vietnamese | → Chemistry | 
| Sn | Tin = (look above) | In Waray-Waray | → Chemistry | 
| Sn | צין = (look above) | In Yiddisch | → Chemistry | 
| Sn | 锡 = (look above) | In Chinese | → Chemistry | 
| SNA | Social Network Analysis | In English | → Sociology | 
| SNA | Syndicat National des Annuaires | In French | → Organizations and associations | 
| SNA | Sous-marin Nucléraire d'Attaque | In French | → Nuclear technology → Military engineering | 
| SNA | System Network Architecture | In English | → Networks, communication | 
| SNA | Sport Na Arbeid | In Dutch | → Organizations and associations → Sport, physical exercises | 
| SNA | Sous-marin Nucléaire d'Attaque | In French | → Military engineering | 
| SNAD | Sindacato Nazionale Autori Drammatici (www.csc-cinematografia.it) | In Italian | → Organizations and associations → Language, linguistics, literature → Italia | 
| SNAG | Sindacato Nazionale Autonomo Giornalai | In Italian | → Organizations and associations → 70 | 
| SNAP | Shipboard Nontactical ADP Program | In English | |
| SNAP | Space Nuclear Auxiliary Power | In English | → Nuclear technology → Astronautics | 
| SNARE | System iNtrusion Analysis and Reporting Environment | In English | → Software | 
| SNAV | Syndicat National des Agences de Voyages | In French | → Organizations and associations → Tourism | 
| SNAYDP | Support to the Netherlands Antilles Youth Development | In English | → Education | 
| SNBPE | Syndicat National du Béton Prêt à l'Emploi (www.snbpe.org) | In French | → Organizations and associations → Civil engineering → Construction | 
| SNC | SADC (Southern African Development Community) National Committee | In English | → International relations → Development → Africa | 
| SNC | Solidarités Nouvelles face au Chômage | In French | → Organizations and associations → Labour, labour economics | 
| SNC | Société en Nom Collectif | In French | → Economics → Law, jurisprudence | 
| SNC | Société Nationale de Colombiculture | In French | → Organizations and associations → Agricultural sciences | 
| SNC | Société Nucléaire Canadienne (www.cns-snc.ca) | In French | → Organizations and associations → Nuclear, atomic, and molecular physics → Nuclear technology → Canada | 
| SNC | Scuola Nazionale di Cinema (www.csc-cinematografia.it) | In Italian | → Specialized or polytechnical colleges → Cinema, movies | 
| SNCAMTC | Syndicat National des Cadres, Agents de Maîtrise et Techniciens de la Cinématographie | In French | → Organizations and associations → Labour, labour economics → Cinema, movies | 
| SNCB | Société Nationale des Chemins de fer Belges (www.b-rail.be) = NMBS | Nationale Maatschappij der Belgische Spoorwegen | In Dutch | In French | → Rail transport engineering → Transport and postal services → Belgium | 
| SNCC | Syndicat National des Courtiers en Céréales | In French | → Organizations and associations → Trade → Agricultural sciences | 
| SNCC | Student Nonviolent Coordinating Committee | In English | → Organizations and associations → Higher education, universities | 
| SNCCI | Sindacato Nazionale Critici Cinematografici Italiani (www.sncci.it) | In Italian | → Organizations and associations → Cinema, movies → Italia | 
| SNCD | Syndicat National de la Communication Directe | In French | → Organizations and associations → 659 | 
| SNCF | Société Nationale des Chemins de fer Français (www.sncf.com) | In French | → Transport and postal services → France | 
| SNCFR | Societatea Naţională a Căilor Ferate Române | In Romanian | → Transport and postal services | 
| SNCFT | Société Nationale des Chemins de Fer Tunisiens (www.sncft.com.tn) | In French | → Transport and postal services → Tunisia | 
| SNCO | Syndicat National des Courtiers en Graines Oléagineuses, Huiles et Corps Gras | In French | → Organizations and associations → Trade → Agricultural sciences → Food technology | 
| SNCPL | Syndicat National des Courtiers en Produits Laitiers | In French | → Organizations and associations → Trade → Food technology | 
| SNCTP | Syndicat National des Courtiers en Tourteaux et Protéines | In French | → Organizations and associations → Trade → Agricultural sciences → Proteins | 
| SND | Society of Nirmaladasikal | In English | → Roman catholic church | 
| SND | Signal Network Distributor | In English | → Telecommunications | 
| SNECMA | Société Nationale d'Études et de Construction de Moteurs d'Avions | In French | → Aeronautics, aircraft | 
| SNED | Syndicat National des Entreprises de Démolition | In French | → Organizations and associations → Construction | 
| SNEM | Service National des Endémies Majeures | In French | → Central administration → Infectious diseases | 
| SNEPS | Syndicat National des Entreprises de Portage Salarial (www.sneps.fr) | In French | → Organizations and associations → Economics → Labour, labour economics | 
| SNESUP | Syndicat National de l'Enseignement Supérieur | In French | → Labour, labour economics → Education | 
| SNET | Société Nationale d'Électricité et de Thermique | In French | → Energy economics → Electrical engineering | 
| SNF | Stichting Nederlandse Fotovakhandel | In Dutch | → Foundations → Trade → Netherlands | 
| SNF | System Noise Figure | In English | |
| SNFS | Syndicat National des Fabricants de Sucre | In French | → Organizations and associations → Food technology | 
| SNG | Sodruzhestva Nezabisimikh Gosudarst | In Russian | |
| SNG | Stadoù Nevez Greantelet | In Breton | |
| SNG | Schweizerische Naturforschende Gesellschaft | In German | → Organizations and associations → Mathematics and natural sciences → Switzerland | 
| SNGCI | Sindacato Nazionale Giornalisti Cinematografici Italiani (www.cinegiornalisti.it) | In Italian | → Organizations and associations → Newspapers, journalism → Cinema, movies → Italia | 
| SNGR | Stochastic Noise Generation and Radiation | In English | → Acoustics | 
| SNHF | Société Nationale d'Horticulture de France (www.snhf.asso.fr) | In French | → Organizations and associations → Horticulture → France | 
| SNHU | Southern New Hampshire University (www.snhu.edu) | In English | → Higher education, universities | 
| SNI | Syndicat Neutre pour Indépendants | In French | → Organizations and associations → Labour, labour economics | 
| SNIAS | Société Nationale Industrielle Aéronautique et Spatiale | In French | → Aeronautics, aircraft → Astronautics | 
| SNIMA | Service de Normalisation Industrielle Marocaine | In French | → Standardization → Morocco | 
| SNIP | Syndicat National de l'Industrie Pharmaceutique | In French | → Pharmacology, toxicology | 
| SNJV | Syndicat National du Jeu Vidéo | In French | → Organizations and associations → Software → Entertainment | 
| SNL | SYBYL Line Notation | In English | → Data → Chemistry | 
| SNL | Sjedinjene Nezavisne Liste (www.snl.hr) | In Croatian | → Political parties and movements | 
| SNL | Sportvereniging Nederlandse Lloyd | In Dutch | → Organizations and associations → Sport, physical exercises → Netherlands | 
| SNLE | Sous-marin Nucléaire Lanceur d'Engins | In French | → Nuclear technology → Military engineering | 
| SNM | Service National Maquis | In French | → Political parties and movements → Military affairs → History | 
| SNMI | Syndicat National des Mortiers Industriels (www.snmi.org) | In French | → Organizations and associations → Civil engineering → Construction | 
| SNML | Salzburg NewMediaLab (www.newmedialab.at) | In English | → Computer science → Telecommunications → Austria | 
| SNMP | Simple Network Management Protocol | In English | → Internet | 
| SNOB | Supporter(s) of Native Oregon Beer | In English | → Organizations and associations → Beverage industry | 
| SNOBOL | StriNg Oriented symBOlic Language (www.snobol4.org) | In English | → Programming languages | 
| SNOC | Singapore National Olympic Council | In English | → Organizations and associations → Sport, physical exercises | 
| SNP | Scottish National Party (www.snp.org) | In English | → Political parties and movements → United Kingdom | 
| SNPAA | Syndicat National des Producteurs d'Alcool Agricole | In French | → Organizations and associations → Agricultural sciences → Chemical technology | 
| SNPAR | Syndicat de la Presse Agricole et Rurale | In French | → Organizations and associations → Newspapers, journalism → Agricultural sciences | 
| SNPB | Syndicat National du Pompage du Béton | In French | → Organizations and associations → Civil engineering → Construction | 
| SNPBAH | Syndicat National des Pharmaciens et Biologistes Assistants des Hôpitaux | In French | → Organizations and associations → Pharmacology, toxicology | 
| SNPGH | Syndicat National des Pharmaciens Gérants Hospitaliers | In French | → Organizations and associations → Pharmacology, toxicology | 
| SNPHPU | Syndicat National des Pharmaciens, Praticiens Hospitaliers et Praticiens Hospitaliers Universitaires | In French | → Organizations and associations → Pharmacology, toxicology |