| Silvesteravond | Nochevieja |
| Silvia Saint | Silvia Saint |
| Silvia Sommerlath | Silvia de Suecia |
| Silvio Berlusconi | Silvio Berlusconi |
| Silvio Gesell | Silvio Gesell |
| Silybum | Silybum |
| Silípica | Departamento Silípica |
| Sima Qian | Sima Qian |
| Simat de la Valldigna | Simat de Valldigna |
| Simchat Thora | Simjat Torá |
| SimCity | SimCity |
| SimCity Societies | SimCity Societies |
| SIMD | Single Instruction Multiple Data |
| Simeon | Simón |
| Simeon I van Bulgarije | Simeón I de Bulgaria |
| Simeon Sakskoboerggotski | Simeón de Sajonia-Coburgo Gotha |
| Simeon Sakskoburggotski | Simeón de Sajonia-Coburgo Gotha |
| Simferopol | Simferópol |
| Simi | Sime |
| Simit | Simit |
| Simkaart | tarjeta SIM |
| Simlish | Simlish |
| Simlock | Bloqueo SIM |
| Simo Häyhä | Simo Häyhä |
| Simon | Simón el Cananeo |
| Simon and Garfunkel | Simon and Garfunkel |
| Simon bar Kochba | Simón bar Kojba |
| Simon Bischop | Simón Episcopius |
| Simon IV van Montfort | Simón IV de Montfort |
| Simon le Bon | Simon Le Bon |
| Simon Magus | Simón el Mago |
| Simon Marius | Simon Marius |
| Simon Rattle | Simon Rattle |
| Simon Schama | Simon Schama |
| Simon Stevin | Simon Stevin |
| Simon V van Montfort | Simón V de Montfort |
| Simon van Cyrene | Simón de Cirene |
| Simon van der Meer | Simon van der Meer |
| Simon van Montfort | Simón IV de Montfort |
| Simon van Sicilië | Simón |
| Simon Webbe | Simon Webbe |
| Simon Wiesenthal | Simon Wiesenthal |
| Simon Wiesenthalcentrum | Centro Simon Wiesenthal |
| Simone Barone | Simone Barone |
| Simone de Beauvoir | Simone de Beauvoir |
| Simone Martini | Simone Martini |
| Simone Perrotta | Simone Perrotta |
| Simone Simons | Simone Simons |
| Simone Weil | Simone Weil |
| Simonides | Simónides de Ceos |
| simonie | simonía |
| Simonne | Jimena |
| Simonopetraklooster | Basílica de San Pedro |
| simpel | estúpido |
| simpele | simplón |
| simpelheid | sencillez |
| Simple API for XML | SAX |
| Simple living | Vida sencilla |
| Simple Machines Forum | SMF |
| Simple Mail Transfer Protocol | Simple Mail Transfer Protocol |
| Simple Network Management Protocol | Simple Network Management Protocol |
| Simple Object Access Protocol | SOAP |
| Simple Plan | Simple Plan |
| Simplexmethode | Algoritmo simplex |
| Simplicissimus | Simplicissimus |
| simpliciteit | sencillez |
| simplificatie | simplificación |
| simplificeren | simplificar |
| simplistisch | simplista |
| Simply Red | Simply Red |
| Simpsons paradox | Paradoja de Simpson |
| Simrishamn | Simrishamn |
| Simulated annealing | Simulated annealing |
| simulatie | afectación |
| simulator | simulador |
| simuleren | actuar |
| simultaan | contemporáneo |
| simultaneïteit | simultaneidad |
| Simutrans | Simutrans |
| Simvastatine | Simvastatina |
| Simyo | Operador móvil virtual |
| Simão Sabrosa | Simão Sabrosa |
| Siméon Poisson | Siméon Denis Poisson |
| Simón Bolívar | Simón Bolívar |
| Simón Rodríguez | Municipio Simón Rodríguez |
| Sin City | Sin City |
| sinaasappel | naranja |
| sinaasappelboom | naranjo |
| Sinaasappeloorlog | Guerra de las Naranjas |
| sinaasappelsap | jugo de naranja |
| sinaasappelschil | cáscara |
| Sinaloa | Sinaloa |
| Sinan | Sinan |
| Sinapis | Sinapis |
| Sinarcas | Sinarcas |
| Sinaï | Sinaí |
| Sinaïberg | Monte Sinaí |
| Sinbad de zeeman | Simbad |
| Sincelejo | Sincelejo |
| Sinclair Lewis | Sinclair Lewis |
| Sinclair ZX Spectrum | Sinclair ZX Spectrum |
| Sindarijns | Sindarin |
| Sindh | Sind |
| Sindhi | Idioma sindhi |
| sinds | desde |
| sindsdien | desde |
| sinecure | sinecura |
| sinecuur | sinecura |
| Sines | Sines |
| Sing Sing | Sing Sing |
| Sing The Sorrow | Sing the Sorrow |
| Singalees | Idioma cingalés |
| Singapore | Singapur |
| Singapore Airlines | Singapore Airlines |
| Singaporees | singapurense |
| Singaporees voetbalelftal | Selección de fútbol de Singapur |
| singel | disco de cuarenta y cinco RPM |
| singeltje | disco de cuarenta y cinco RPM |
| single | disco de cuarenta y cinco RPM |
| Single Document Interface | Interfaz de documento único |
| Single Inline Memory Module | SIMM |
| Single Minute Exchange of Die | SMED |
| Single nucleotide polymorphism | Polimorfismo de nucleótido simple |
| Single-sideband modulation | Modulación en banda lateral única |
| Single-system image | Single System Image |
| Singleplayer | Videojuego de un jugador |
| singleton | semifallo |
| Singspiel | Singspiel |
| SingStar | SingStar |
| singulariteit | singularidad |
| sinificatie | sinización |
| sinister | diabólico |
| Sinister Six | Seis Siniestros |
| Siniša Mihajlović | Siniša Mihajlović |
| Sinkiang | Xinjiang |
| Sinn Féin | Sinn Féin |
| Sinnoh | Sinnoh |
| Sino-Tibetaanse talen | Lenguas sino-tibetanas |
| sinologie | sinología |
| Sinon | Sinón |
| Sinop | Provincia de Sinop |
| Sinope | Sinop |
| sinopel | sinople |
| Sinosauropteryx | Sinosauropteryx |
| SINPO-code | SINPO |
| Sinraptoridae | Sinraptoridae |
| Sint | Santo |
| Sint Eustatius | Sint Eustatius |
| Sint Helena | Santa Helena |
| Sint Maarten | Isla de San Martín |
| Sint Nicolaas | Nicolás de Bari |
