

| Acronym | Sense | Language | Topics | 
|---|---|---|---|
| SMW | Strategic Missile Wing | In English | |
| SNA | Sous-marin Nucléraire d'Attaque | In French | → Nuclear technology | 
| SNA | Sous-marin Nucléaire d'Attaque | In French | |
| SNLE | Sous-marin Nucléaire Lanceur d'Engins | In French | → Nuclear technology | 
| SODSIM | Strategic Offense-Defense Simulation | In English | → Military affairs | 
| SOFRES | Société Française d'Exportation de Systèmes d'Armements | In French | → Trade | 
| SPADATS | Space Defense Acquisition and Tracking System | In English | → Astronautics | 
| SPADCCS | Space Defense Command and Control System | In English | → Astronautics | 
| SPADE | Space Acquisition Defense Experiment | In English | → Astronautics | 
| SPADOC | Space Defense Operations Center | In English | → Astronautics | 
| SPOTI | Service des Programmes d'Observation, de Télécommunications et d'Information | In French | → Telecommunications | 
| SRAM | Short-Range Attack Missile | In English | |
| SRAM | Short Range Attack Missile | In English | |
| SRBM | Short-Range Ballistic Missile | In English | |
| SSBN | Fleet Ballistic Missile Submarine | In English | |
| SSM | Surface-to-Surface Missile | In English | |
| STC | SHAPE (Supreme Headquarters Allied Powers Europe) Technical Center | In English | |
| STM | Systems Test Missile | In English | |
| STRADEM | Strategic Defense Effectiveness Model | In English | → Military affairs | 
| SUBSAM | Subsurface-to-Air Missile | In English | |
| SWC | Space Warfare Center | In English | → Research institutes → Astronautics | 
| SWL | Signals Warfare Lab | In English | → Research institutes | 
| TACSATCOM | Tactical Satellite Communications | In English | → Telecommunications → Astronautics | 
| TBM | Tactical Ballistic Missile | In English | |
| TBMD | Theater Ballistic Missile Defense | In English | |
| THAAD | Theater High Altitude Area Defence System | In English | |
| TICE | Traité d'Interdiction Complète des Essais nucléaires | In French | → International relations → Nuclear technology | 
| TLO | Transport Lourd Offensif | In French | |
| TLOBA | Transport Lourd Offensif en Basse Altitude | In French | |
| TMA | Target Motion Analysis | In English | |
| TMD | Theater Missile Defense | In English | |
| TNP | Traité de Non Prolifération des armes nucléaires | In French | → International relations → Nuclear technology | 
| TNT | Trinitrotoluol = TNT | Trinitrotoluè | In Catalan = TNT | Trinitrotoluen | In Czech = TNT | Trinitrotoluene | In English = TNT | Trinitrotolueno | In Esperanto = TNT | Trinitrotolueno | In Spanish = 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 German | → Chemicals | 
| TNT | Trinitrotoluè = ТНТ (look above) | In Catalan | → Chemicals | 
| TNT | Trinitrotoluen = ТНТ (look above) | In Czech | → Chemicals | 
| TNT | Trinitrotoluene = ТНТ (look above) | In English | → Chemicals | 
| TNT | Trinitrotolueno = ТНТ (look above) | In Esperanto | → Chemicals | 
| TNT | Trinitrotolueno = ТНТ (look above) | In Spanish | → Chemicals | 
| TNT | Trinitrotoluenori = ТНТ (look above) | In Basque | → Chemicals | 
| TNT | ترینیتروتولوئن = ТНТ (look above) | In Persian | → Chemicals | 
| TNT | Trinitrotoluène = ТНТ (look above) | In French | → Chemicals | 
| TNT | Trinitrotoluene = ТНТ (look above) | In Italian | → Chemicals | 
| TNT | Trinitrotoluolas = ТНТ (look above) | In Lithuanian | → Chemicals | 
| TNT | Trinitrotolueen = ТНТ (look above) | In Dutch | → Chemicals | 
| TNT | Trinitrotoluen = ТНТ (look above) | In Nynorsk | → Chemicals | 
| TNT | Trinitrotoluen = ТНТ (look above) | In Norwegian | → Chemicals | 
| TNT | Trinitrotolueno = ТНТ (look above) | In Portuguese | → Chemicals | 
| TNT | Trinitrotoluen = ТНТ (look above) | In Romanian | → Chemicals | 
| TNT | Тринитротолуол = ТНТ (look above) | In Russian | → Chemicals | 
| TNT | Trinitrotoluen = ТНТ (look above) | In Slovenian | → Chemicals | 
| TNT | ทีเอ็นที = ТНТ (look above) | In Thai | → Chemicals | 
| TNT | Trinitrotoluen = ТНТ (look above) | In Turkish | → Chemicals | 
| TOW | Tube-launched Optical-tracked Wire-guided missile | In English | |
| TW/AA | Tactical Warning/Attack Assessment | In English | → Military affairs | 
| UNIDIR | United Nations Institute for Disarmament Research (www.unidir.org) | In English | → United Nations → Polemology | 
| USASDG | United States Army Space Defense Group | In English | → Military affairs → Astronautics → United States | 
| VAB | Véhicule de l'Avant Blindé | In French | → Automobile manufacturing | 
| VOA | Véhicule d'Observation de l'Artillerie | In French | → Automobile manufacturing | 
| WCP | Weapon Control Platform | In English | |
| WEAG | Western European Armaments Group | In English | → Organizations and associations | 
| WEAO | Western European Armaments Organisation = GAEO | Groupe Armement de l'Europe Occidentale | In French | In English | → Organizations and associations | 
| WP | Weapons Platform | In English | |
| WSMC | Western Space and Missile Center | In English | → Astronautics | 
| WSMCR | Western Space and Missile Center Range | In English | → Astronautics | 
| WSMCR | Western Space and Missile Center Regulation | In English | → Astronautics | 
| WSMR | White Sands Missile Range | In English | |
| WSPR | Weapon System Problem Report | In English | |
| WSTA | Weapon System Testability Analyzer | In English | |
| WSV | Weapon System Vehicle | In English | → Vehicle engineering | 
| WWMCCS | Worldwide Military Command and Control System | In English | → Military affairs | 
| ТНТ | Тринитротоулен = TNT (look above) | In Serbian | → Chemicals | 
| ТНТ | Тринітротолуол = TNT (look above) | In Ukrainian | → Chemicals |