| suggestion | alusión |
| suggestive | sugestivo |
| Suggestopedia | Superaprendizaje |
| Sugnens | Sugnens |
| Suharto | Suharto |
| Suhl | Suhl |
| Sui Dynasty | Dinastía Sui |
| Sui iuris | Sui iuris |
| suicidal | suicida |
| suicide | suicidio |
| Suicide assassination | Atentado suicida |
| Suicide attack | Atentado suicida |
| suicide bomber | hombre bomba |
| SuicideGirls | Suicide Girls |
| Suidae | Suidae |
| Suikinkutsu | Suikinkutsu |
| Suikoden | Suikoden |
| Suina | Suina |
| Suintila | Suintila |
| Suipacha Partido | Suipacha |
| suit | favorecer |
| suit of armor | armadura |
| Suit of rooms | El apartamento |
| suit someone | sentar bien a alguien |
| suitability | adaptabilidad |
| suitable | apropiado |
| suitableness | adaptabilidad |
| suitably | apropiadamente |
| suitcase | petaca |
| suitcoat | americana |
| suite | séquito |
| suite of furniture | juego de muebles |
| suiting | tela para trajes |
| Sukarno | Achmed Sukarno |
| Sukarrieta | Pedernales |
| Sukhoi | Sujoi |
| Sukhoi PAK FA | PAK-FA |
| Sukhum | Sujumi |
| Sukhumi | Sujumi |
| Sukhumi botanical garden | Jardín Botánico de Sujumi |
| Sukkot | Sucot |
| Sulake | Sulake |
| Sulawesi | Célebes |
| Sulayman ibn Abd al-Malik | Suleimán I |
| Sulaymaniyah | Suleimaniya |
| Suleiman II | Suleiman II |
| Suleiman II of Córdoba | Sulaiman al-Mustain |
| Suleiman the Magnificent | Suleiman Kanuni |
| Sulejman Tihić | Sulejman Tihić |
| sulfa | sulfonamida |
| sulfa drug | sulfonamida |
| sulfate | sulfato |
| Sulfate-reducing bacteria | Bacteria reductora de sulfato |
| sulfide | sulfito |
| sulfite | sulfito |
| sulfonamide | sulfonamida |
| sulfur | azufre |
| Sulfur dichloride | Dicloruro de azufre |
| Sulfur dioxide | Óxido de azufre |
| Sulfur mustard | Gas mostaza |
| sulfur oxide | óxido de azufre |
| Sulfur-reducing bacteria | Bacteria reductora de azufre |
| sulfurate | sulfurar |
| sulfureous | sulfuroso |
| sulfuric | sulfúrico |
| sulfuric acid | ácido sulfúrico |
| sulfurous | sulfuroso |
| sulfurous acid | ácido sulfuroso |
| Sulidae | Sulidae |
| Sulina | Sulina |
| sulk | hacer pucheros |
| sulkiness | capricho |
| sulky | malhumorado |
| Sullana Province | Provincia de Sullana |
| sullen | oscuro |
