

| Acronym | Sense | Language | Topics | 
|---|---|---|---|
| SSENR | Schéma de Service des Espaces Naturels et Ruraux | In French | → Environmental protection | 
| SSF | Sécurité Sans Frontières | In French | → Military affairs | 
| SSI | Système de Surveillance International | In French | → International relations | 
| SSI | Système de Sécurité Incendie | In French | → Firefighting | 
| SSI | Sécurité du Système d'Information | In French | → Computer science | 
| SSIAD | Système de Soins Infirmiers À Domicile | In French | → Medicine | 
| SSIDONI | Serveur d'Informations et de DONnées sur l'Informatique industrielle | In French | → Software | 
| SSIE | Société Suisse pour l'Informatique dans l'Enseignement (www.svia-ssie.ch) = SVIA | Schweizerischer Verein für Informatik in der Ausbildung | In German = SSII | Società Svizzera per l'Informatica nell'Insegnamento | In Italian | In French | → Organizations and associations → Computer science → Education → Switzerland | 
| SSII | Société de Services en Ingéniérie Informatique | In French | → Computer science | 
| SSIT | Système de Surveillance des Incidents Transfusionnels | In French | → Blood and circulatory system | 
| SSMI | Service de Sécurité du Ministère de l'Intérieur | In French | → Police → Central administration | 
| SSMS | Société Suisse de Médecine du Sport (http://sgsm-ssms.ch) = SGSM | Schweizerische Gesellschaft für Sportmedizin | In German | In French | → Organizations and associations → Medicine → Sport, physical exercises → Switzerland | 
| SSO | Société Suisse d'Odonto-stomatologie | In French | → Organizations and associations → Medicine → Switzerland | 
| SSPES | Societé Suisse des Professeurs de l'Enseignement Secondaire (www.vsg-sspes.ch) = VSG | Verein schweizerischer Gymnasialehrerinnen und Gymnasiallehrer | In German = SSISS | Società Svizzera degli Insegnanti delle Scuole Secondarie | In Italian | In French | → Organizations and associations → Education → Sport, physical exercises → Switzerland | 
| SSPh | Société Suisse des Pharmaciens (www.pharmasuisse.org/fr/) = SAV | Schweizer Apothekerverband | In German | In French | → Organizations and associations → Pharmacology, toxicology → Switzerland | 
| SSPM | Société Suisse de Pédagogie Musicale (www.sspm.ch) = SMPV | Schweizerischer Musikpädagogischer Verband | In German | In French | → Organizations and associations → Education → Music → Switzerland | 
| SSPM | Société Suisse de Phytothérapie Médicale | In French | → Organizations and associations → Pharmacology, toxicology → Switzerland | 
| SSR | Service de Santé de la Résistance | In French | → Medicine → History | 
| SSS | Service des Sociétés Secrètes | In French | → Organizations and associations → Police | 
| SSSM | Service de Santé et de Secours Médical | In French | → Medicine | 
| SST | Service pour la Science et la Technologie | In French | → Mathematics and natural sciences → Engineering, technology | 
| SST | Secouriste Sauveteur du Travail | In French | → Medicine → Labour, labour economics | 
| SSU | Secours et Soins d'Urgence | In French | → Traumatology | 
| SSV | Société Suisse de Vexillologie (www.vexilla.ch) = SGFF | Schweizerische Gesellschaft für Fahnen- und Flaggenkunde | In German = SSV | Società Svizzera di Vessillologia | In Italian | In French | → Organizations and associations → Flags, banners → Switzerland | 
| ST | Sciences de la Terre | In French | → Earth sciences | 
| ST | Surveillance du Territoire | In French | → Police | 
| ST2N | Société Nouvelle des Transports de l'Agglomération Niçoise | In French | → Transport and postal services | 
| STAF | Sciences et Technologies de l'Apprentissage et de la Formation | In French | → Education | 
| STAFF | Spectacle et Technique Association Française de Formation | In French | → Associations → Education → Arts → France | 
| STAN | Système de Transport de l'Agglomération Nancéienne | In French | → Transport and postal services → France | 
| STAPS | Sciences et Techniques des Activités Physiques et Sportives | In French | → Education → Sport, physical exercises | 
| STAREC | Société Technique d'Application et de Recherche Électronique | In French | → Electronics | 
| STATEC | Service central de la statistique et des études économiques | In French | → Statistics → Economics | 
| STB | Sclérose Tubéreuse de Bourneville | In French | → Neurology | 
| STBC | Société des Transports du Bassin Chellois | In French | → Transport and postal services | 
| STCUM | Société de Transport de la Communauté Urbaine de Montréal | In French | → Organizations and associations → Transport and postal services → Canada | 
| STD | Spécifications Techniques Détaillées | In French | → Engineering, technology | 
| STE | Service Technique Électricité | In French | → Electrical engineering | 
| STEEL | Société de travaux d'Électricité et d'Électronique du Languedoc | In French | → Electrical engineering → Electronics | 
| STEG | Service Technique Électricité et Gaz | In French | → Electrical engineering → Energy economics | 
| STEP | Station d'Épuration | In French | → Environmental technology, water supply, waste management | 
| STEP | Station de Transfert d'Énergie par Pompage | In French | → Energy economics | 
| STERIA | SociéTÉ de Réalisations en Informatique et Automatisme | In French | → Computer-based techniques → Mechanical engineering | 
| STG | Spécifications Techniques Générales | In French | → Engineering, technology | 
| STG | Service Technique Gaz | In French | → Energy economics | 
| STG | Sciences et Technologies de Gestion | In French | → Education → Accounting → Management | 
| STH | Surface Toujours en Herbe | In French | → Agricultural sciences | 
| STI | Systèmes de Transports Intelligents | In French | → Transport and postal services | 
| STI | Sciences et Techniques Industrielles | In French | → Engineering, technology | 
| STI | Système de Téléphonie Interactif | In French | → Telecommunications | 
| STI | Service Transmission et Informatique | In French | → Police → Computer science | 
| STI | Sciences et Technologies de l'Industrie | In French | → Education → Engineering, technology | 
| STIB | Société des Travailleurs Ignorés Bruxellois | In French | → Organizations and associations → Labour, labour economics → Belgium | 
| STIB | Société des Transports Intercommunaux de Bruxelles | In French | → Organizations and associations → Transport and postal services → Belgium | 
| STIC | Système de Traitement de l'Information Criminelle | In French | → Data processing → Police → Criminology | 
| STIC | Sciences des Technologies de l'Information et la Communication | In French | → Computer science → Telecommunications | 
| STIC | Système de Traitement des Infractions Constatées | In French | → Data processing → Police | 
| STID | Statistiques et Traitement Informatique des Données | In French | → Computer-based techniques → Statistics | 
| STL | Sciences et Technologies de Laboratoire | In French | → Education → Mathematics and natural sciences → Engineering, technology | 
| STL | Sciences et Techniques du Logiciel | In French | → Software | 
| STL | Société de Transport de Laval | In French | → Organizations and associations → Transport and postal services → Canada | 
| STLO | Science et Technologie du Lait et de l'Oeuf | In French | → Food technology | 
| STM | Société de Transport de Montréal | In French | → Organizations and associations → Transport and postal services → Canada | 
| STMI | Société des Techniques en Milieu Ionisant (www.stmi.fr) | In French | → Nuclear technology → France | 
| STN | Société des Transports de Normandie | In French | → Transport and postal services | 
| STN | Société Tunisienne de Néphrologie (www.nephro-tn.org) | In French | → Organizations and associations → Medicine → Tunisia | 
| STO | Service du Travail Obligatoire | In French | → Labour, labour economics → History | 
| STP | Syndicat des Transports Parisiens | In French | → Organizations and associations → Transport and postal services → France | 
| STP | S'il Te Plaît | In French | |
| STPA | Sciences et Technologies du Produit Agroalimentaire | In French | → Agricultural sciences → Food technology | 
| STPI | Sciences et Technologies pour l'Ingénieur | In French | → Education → Engineering, technology | 
| STR | Stratégie en Temps Réél = RTS | Real-Time Strategy | In English | In French | → Computer science → Entertainment | 
| STRI | Systèmes de Télécommunications et Réseaux Informatiques | In French | → Computer science → Telecommunications | 
| STRRES | syndicat national des entrepreneurs spécialistes de Travaux de Réparation et de Renforcement des Structures (www.strres.org) | In French | → Organizations and associations → Construction | 
| STS | Section de Techniciens Supérieurs | In French | → Engineering, technology | 
| STSI | Service des Technologies et de la Société de l'Information | In French | → Computer science → Telecommunications | 
| STT | Sciences et Technologies Tertiaires | In French | → Education | 
| STU | Sciences de la Terre et de l'Univers | In French | → Astronomy → Earth sciences | 
| STYLO | Simulation du comporTement du craYon combustibLe sous irradiatiOn | In French | → Nuclear technology | 
| SUAOIP | Service Universitaire d'Accueil, d'Orientation et d'Insertion Professionnelle | In French | → Labour, labour economics → Higher education, universities | 
| SUAPS | Service Universitaire des Activités Physiques et Sportives | In French | → Higher education, universities → Sport, physical exercises | 
| SUB | Syndicat Unique du Bâtiment | In French | → Organizations and associations → Labour, labour economics → Construction | 
| SUC | Sous-Unité Centrale | In French | |
| SUCCE | Sous-Unité Centrale pour la Gestion des Crises | In French | → Accidents, risks, safety | 
| SUDOC | Système Universitaire de Documentation | In French | → Documentation → Higher education, universities | 
| SUIO | Service Universitaire d'Information et d'Orientation | In French | → Higher education, universities → Labour, labour economics | 
| SUN | Stanford University Network | In French | → Computer science → Computer hardware → Software → Networks, communication → United States | 
| SURF | Système Utilitaire de Restitution de Fichier | In French | → Software → Files | 
| SUSIE | Système Universel de Synchronisation Informatique Évolutif | In French | → Software | 
| SV | Sciences de la Vie | In French | → Biological sciences | 
| SV | Sécurité de la Vieillesse | In French | → Social welfare | 
| SVAL | Société Vexillologique d'Alsace-Lorraine | In French | → Organizations and associations → Flags, banners | 
| SVE | Société Volcanologique Européenne (www.sveurop.org) | In French | → Organizations and associations → 55121 | 
| SVI | Serveur Vocal Interactif | In French | → Telecommunications | 
| SVM | Support Vector Machine | In French | → Artificial intelligence | 
| SVM | Star View Metafile | In French | → Files → Document processing | 
| SVMS | Société Vaudoise des Maîtres Secondaires | In French | → Organizations and associations → Education | 
| SVO | Société Vexillologique de l'Ouest | In French | → Organizations and associations → Flags, banners | 
| SVP | S'il Vous Plaît | In French | |
| SVS | Société des Vétérinaires Suisses (www.gstsvs.ch) = GST | Gesellschaft Schweizerischer Tierärztinnen und Tierärzte | In German | In French | → Organizations and associations → Veterinary medicine → Switzerland | 
| SVT | Sang Thrombose Vaisseaux | In French | → Serial publications, periodicals → Cardiology | 
| SVT | Sciences de la Vie et de la Terre | In French | → Biological sciences → Earth sciences | 
| SYCOET | SYstème de COnfiguration des Équipements de Téléconduite (pour les réseaux de transport d'énergie) | In French | → Software → Energy economics | 
| SYCTOM | Syndicat InterCommunal de Traitement des Ordures Ménagères (de la Ville de Paris) (www.syctom-paris.fr) | In French | → Environmental technology, water supply, waste management → France | 
| SYGAL | SYstème de Gestion Automatisée des Loyers | In French | → Software → Accommodation | 
| SYGAL | SYstème de Gestion pour l'Alimentation | In French | → Software → Food technology | 
| SYGARD | SYstème de Gestion d'Accès au Réseau de Distribution | In French | → Software → Energy economics | 
| SYGMA | SYstème de Gestion de la MAintenance | In French | → Software → Maintenance and logistics | 
| SYLEN | SYstème de LEcture Nomade | In French | → Libraries | 
| SYLVIE | SYstème de Listage et de Ventilation d'Informations Élaborées | In French | → Software → Personnel management | 
| SYNAD | Syndicat National des Adjuvants pour Bétons et Mortier (www.synad.fr) | In French | → Organizations and associations → Civil engineering → Construction → France | 
| SYNALAF | Syndicat National des Labels Avicoles de France | In French | → Organizations and associations → Agricultural sciences → France | 
| SYNPREFH | Syndicat National des Pharmaciens des Établissements Publics de Santé | In French | → Organizations and associations → Pharmacology, toxicology | 
| SYSFAC | SYstème de Surveillance de la FAtigue de la Chaudière | In French | → Software → Nuclear technology | 
| SYSIF | SYStème d'Information des Filiales | In French | → Knowledge management | 
| SYTRAL | SYndicat des TRansports en commun de l'Agglomération Lyonnaise (www.sytral.fr) | In French | → Organizations and associations → Transport and postal services → France | 
| T | Thymine = T | Thymine | In English = T | ثايمين | In Arabic = T | Timina | In Catalan = T | Thymin | In Czech = T | Thymin | In Danish = T | Thymin | In German = T | Θυμίνη | In Greek = T | Timina | In Spanish = T | Timino | In Esperanto = T | Timina | In Galician = T | Timina | In Italian = T | Timin | In Indonesian = T | תימין | In Hebrew = T | Timinas | In Lithuanian = T | Timin | In Hungarian = T | Thymine | In Dutch = T | チミン | In Japanese = T | Tymin | In Norwegian = T | Tymina | In Polish = T | Timina | In Portuguese = T | Тимин | In Russian = T | Timin | In Slovenian = T | Тимин | In Serbian = T | 胸腺嘧啶 | In Chinese = T | Тимін | In Ukrainian = T | Timin | In Turkish = T | Timin | In Serbo-Croatian = T | ไทมีน | In Thai = T | Tymiini | In Finnish = T | Tymin | In Swedish | In French | → Genetics → Biochemistry, biophysics | 
| T | Thréonine = T | Threonine | In English = T | Treonina | In Catalan = T | Threonin | In Czech = T | Threonin | In German = T | Treonina | In Spanish = T | Treonino | In Esperanto = T | 트레오닌 | In Korean = T | Treonin | In Indonesian = T | Treonina | In Italian = T | תראונין | In Hebrew = T | Treonīns | In Latvian = T | Threonin | In Letzeburgesh = T | Treoninas | In Lithuanian = T | Threonine | In Dutch = T | トレオニン | In Japanese = T | Treonina | In Polish = T | Treonina | In Portuguese = T | Треонин | In Russian = T | Treoniini | In Finnish = T | Treonin | In Swedish = T | Treonin | In Turkish = T | Треонін | In Ukrainian = T | 蘇氨酸 | In Chinese | In French | → Biochemistry, biophysics | 
| T2A | Tarification à l'activité | In French | |
| TA | Tribunal Administratif | In French | → Law, jurisprudence → Public administration, government | 
| TA | Taxe d'Apprentissage | In French | → Taxes, duties → Labour, labour economics | 
| TAAF | Terres Australes et Antarctiques Françaises | In French | → Geography → Antarctica | 
| TAC | Traitement Communautaire Assertif = PACT | Program Assertif Community Treatment | In English | In French | → Psychiatry | 
| TAC | Total Autorisé de Capture | In French | → Fishing, hunting | 
| TAC | Titre Alcalimétrique Complet | In French | → Chemistry | 
| TAC | Transports Annemassiens Collectifs | In French | → Transport and postal services | 
| TAC | Tribune Anarchiste Communiste | In French | → Serial publications, periodicals → Anarchist organizations → Communist parties | 
| TACA | Taxe d'Aide au Commerce et à l'Artisanat | In French | → 3363 → Trade | 
| TACO | Tomographie Axiale Calculée par Ordinateur | In French | → Diagnostics | 
| TAG | Trouble Anxieux Généralisé | In French | → Neurology | 
| TAGE | Tests d'Aptitude à la Gestion des Entreprises | In French | → Management → Economics → Education | 
| TAI | Transports Aériens Intercontinentaux | In French | → Transport and postal services | 
| TAIM | Traitement Automatique de l'Information Multimédia | In French | → Computer-based techniques | 
| TAL | Traitement Automatique des Langues | In French | → Language, linguistics, literature | 
| TALN | Traitement Automatique du Langage Naturel | In French | → Computer-based techniques → Linguistics | 
| TALNE | Traitement Automatique du Langage Naturel Écrit | In French | → Computer-based techniques → Linguistics | 
| TALNEO | Traitement Automatique de la Langue Naturelle Écrite et Orale | In French | → Computer-based techniques → Linguistics | 
| TALNO | Traitement Automatique du Langage Naturel Oral | In French | → Computer-based techniques → Linguistics | 
| TAN | Test d'amplification des Acides Nucléiques = PCR | Polymerase Chain Reaction | In English = ACP | Amplification en Chaîne par Polymérase | In French = RCP | Reação em Cadeia da Polimerase | In Portuguese = ПЦР | Полимера́зная Цепна́я Реа́кция | In Russian = PĈR | Polimeraza Ĉen-Reakcio | In Esperanto = PZR | Polimeraz Zəncir Reaksiyası | In Azerbaijani = ՊՇՌ | Պոլիմերազային շղթայական ռեակցիան | In Armenian = PGR | Polimerazinė Grandininė Reakcija | In Lithuanian = ПГУ | Полимеразын Гинжин Урвал | In Mongolian = ПЛР | Полімеразна Ланцюгова Реакція | In Ukrainian | In French | → Biotechnology → Genetics → Enzymes | 
| TAO | Traduction Automatique par Ordinateur | In French | → Translation → Computer science | 
| TAPIR | Transformateur d'Alimentation Provisoire Intégré sur Remorque | In French | → Electrical engineering → Food technology | 
| TAPSA | Transition Agroécologique Paysanne pour la Souveraineté Alimentaire | In French | → Development → Agricultural sciences → Environmental protection | 
| TARG | Téléchargement des Applications Réseau Gaz | In French | → Computer science → Energy economics | 
| TARTAM | TArif Réglementé Transitoire d'Ajustement du Marché | In French | → Prices → Energy economics | 
| TBC | Très Bon Confort | In French | → Applied sciences, technology | 
| TBC | Très Basse Consommation | In French | → Electrical engineering → Environmental technology, water supply, waste management | 
| TBC | Trams et Bus de la CUB (Communauté Urbaine de Bordeaux) | In French | → Transport and postal services | 
| TBE | Tableau de Bord de l'Environnement | In French | → 5023 | 
| TBM | Time-Based Management | In French | → Management | 
| TBT | Très Basse Tension | In French | → Electrical engineering | 
| TBT | Très Basse Température | In French | → Applied sciences, technology | 
| TBV | Total Blood Volume | In French | → Blood and circulatory system | 
| TC | Transformateur de Courant | In French | → Energy economics → Electrical engineering | 
| TCA | Temps de Céphaline Activé | In French | → Medicine | 
| TCAO | Traitement de Corpus Assisté par Ordinateur | In French | → Computer-based techniques → Language, linguistics, literature | 
| TCC | Toutes Causes Confondues | In French | |
| TCEM | Troisième Cycle des Études Médicales | In French | → Higher education, universities → Medicine | 
| TCF | Test de Connaissance du Français | In French | → Education → Language, linguistics, literature | 
| TCFM | Télécommande à Fréquence Musicale | In French | → Electronics | 
| TCFN | Total Compagnie Française de Navigation | In French | → Transport and postal services → 665 → France | 
| TCI | Taxe Conjecturelle à l'Importation | In French | → Taxes, duties | 
| TCL | Transports en Commun Lyonnais | In French | → Transport and postal services → France | 
| TCM | Temps de Coupure Moyen | In French | → Electrical engineering | 
| TCMF | Total Compagnie Minière Française | In French | → Mining → France | 
| TCMH | Teneur Corpusculaire Moyenne en Hémoglobine | In French | → Diagnostics → Blood and circulatory system → Proteins | 
| TCO | Tomographie par Cohérence Optique | In French | → Diagnostics → Image processing → Optics | 
| TCS | Transactions Commerciales Sortantes | In French | → Trade | 
| TCSP | Transport en Commun en Site Propre | In French | → Transport and postal services | 
| TD | Télégramme Diplomatique | In French | → Central administration | 
| TD | Travaux Dirigés | In French | → Education | 
| TD | Taxe Départementale | In French | → Taxes, duties → Regional administration | 
| TDA | Télédiffusion d'Algérie (www.tda.dz) | In French | → Telecommunications → Algeria | 
| TDA | Trouble Déficitaire de l'Attention | In French | → Neurology | 
| TDA | Toullec Dancoing Associés | In French | → Software | 
| TDA | Technique Design Acoustique | In French | → Acoustical engineering | 
| TDAH | Trouble Déficit de l'Attention / Hyperactivité = ADHD | Attention Deficit / Hyperactivity Disorder | In English | In French | → Neurology | 
| TDAH | Trouble Déficitaire de l'Attention avec ou sans Hyperactivité | In French | → Neurology | 
| TDF | Télédiffusion de France | In French | → Telecommunications → France | 
| TDM | Tomodensitométrie | In French | → Image processing → Diagnostics | 
| TDP | Taxe Dégressive de Protection | In French | → Taxes, duties | 
| TE | Thrombocytémie Essentielle | In French | → Blood and circulatory system → Pathology | 
| TE | Travail Étranger | In French | → Organizations and associations → Labour, labour economics → History | 
| TEA | Tranche en Arrêt | In French | → Nuclear technology | 
| TEAM | Test Européen d'Aptitude au Management | In French | → Management → Education | 
| TEC | Transports En Commun en Wallonie | In French | → Transport and postal services | 
| TED | Traitement des Écritures Diverses | In French | |
| TEF | Transfert Électronique de Fonds | In French | → Finance | 
| TEF | Tranche en Fonctionnement | In French | → Nuclear technology | 
| TEF | Test d'Evaluation de Français | In French | → Education → Linguistics | 
| TEG | Taux Effectif Global | In French | → Banks | 
| TEL | Thèse en ligne | In French | → Libraries → Higher education, universities | 
| TEL | Teneur en Eau Liquide | In French | → Applied sciences, technology | 
| TEM | Tranche en Marche | In French | → Nuclear technology | 
| TEMASOL | Total EDF Maroc Solaire | In French | → Energy economics → Morocco | 
| TEMIS | Technopole Microtechniques et Scientifiques de Besançon (www.temis.org) | In French | → Research policy | 
| TEMSI | TEMps SIgnificatif | In French | → Meteorology, climatology | 
| TENERRDIS | Technologies Énergies Nouvelles Énergies Renouvelables Rhône-Alpes, Drôme, Isère, Savoie | In French | → 6219 | 
| TENP | Transport Électricité Normandie-Paris | In French | → Energy economics → Electrical engineering → France | 
| TEO | Transport Électricité Ouest | In French | → Energy economics → Electrical engineering | 
| TEP | Tonne Équivalent Pétrole | In French | → Energy economics → 665 |