| sugorgan | ventosa |
| sugrör | absorbente |
| Suharto | Suharto |
| Suhl | Suhl |
| Suhr | Suhr |
| Suidynastin | Dinastía Sui |
| Suikinkutsu | Suikinkutsu |
| Suikoden-serien | Suikoden |
| Suina | Suina |
| Suir | Suir |
| Suizei | Emperador Suizei |
| Sukarno | Achmed Sukarno |
| Sukkot | Sucot |
| sukros | sacarosa |
| sukta efter | anhelar |
| sula | planta |
| Sulake | Sulake |
| Sulawesi | Célebes |
| Sulayman | Salomón |
| Suleiman II | Sulaiman al-Mustain |
| sulfapreparat | sulfonamida |
| sulfat | sulfato |
| sulfur- | sulfúrico |
| Sulina | Sulina |
| Sulla | Lucio Cornelio Sila |
| Sullens | Sullens |
| Sullivan County | Condado de Sullivan |
| Sully Prudhomme | Sully Prudhomme |
| Sulmona | Sulmona |
| Sulor | Sulidae |
| sultan | sultán |
| sultanat | sultanato |
| Sumakväxter | Anacardiaceae |
| Sumatra | Sumatra |
| Sumatranoshörning | Dicerorhinus sumatrensis |
| Sumatratiger | Panthera tigris sumatrae |
| Sumba | Sumba |
| Sumer | Sumeria |
| Sumerisk mytologi | Mitología caldea |
| sumeriska | sumerio |
| Sumeriska kungalistan | Lista de reyes sumerios |
| Sumida | Sumida |
| Sumiswald | Sumiswald |
| summa | suma |
| Summaformel | Formulación química |
| Summan av skräck | La suma de todos los miedos |
| summarisk | breve |
| summera | sumar |
| Summerhill | Escuela de Summerhill |
| SummerSlam | SummerSlam |
| Summorum pontificum | Summorum Pontificum |
| Sumobrottning | Sumo |
| sump | sedimento fino |
| Sumpapa | Allenopithecus nigroviridis |
| sumpig | empapado |
| sumpmark | pantano |
| Sumter County | Condado de Sumter |
| Sumvitg | Sumvitg |
| Sumy oblast | Óblast de Sumy |
| Sun | Sun |
| Sun City | Sun City |
| Sun Myung Moon | Sun Myung Moon |
| Sun Studio | Estudio Sun |
| Sun Wukong | Sun Wukong |
| Sun Yat-sen | Sun Yat-sen |
| Sun Zi | Sun Tzu |
| sund | estrecho |
| Sundance Film Festival | Festival de Cine de Sundance |
| Sunday | Domingo |
| Sunderland | Sunderland |
| Sunderland AFC | Sunderland Association Football Club |
| sundhetsbehandling | tratamiento fitosanitario |
| sundhetspass | patente de sanidad |
