| selectie | selection |
| selectief | exclusive |
| selectievakje | checkbox |
| Selectieve Katalytische Reductie | Selective catalytic reduction |
| Selectieve niet-katalytische reductie | Selective non-catalytic reduction |
| Selective Serotinine Reuptake Inhibitor | Selective serotonin reuptake inhibitor |
| selectiviteit | selectivity |
| seleen | selenium |
| Selemdzja | Selemdzha River |
| Selena Quintanilla | Selena |
| selenaat | selenate |
| Selene | Selene |
| Selenga | Selenge River |
| selenium | selenium |
| selenologie | selenology |
| Seleucia | Seleucia |
| Seleuciden | Seleucid Empire |
| Seleucus | Seleucus |
| Seleucus I Nicator | Seleucus I Nicator |
| Seleucus II Callinicus | Seleucus II Callinicus |
| Seleucus III Ceraunus | Seleucus III Ceraunus |
| Seleucus IV Philopator | Seleucus IV Philopator |
| Seleucus V Philometor | Seleucus V Philometor |
| Seleucus van Seleucia | Seleucus of Seleucia |
| Self-serving bias | Self-serving bias |
| selfie | selfie |
| Selfkant | Selfkant |
| selfmade man | self-made man |
| Selfoss | Selfoss |
| Seligenstadt | Seligenstadt |
| Seligermeer | Lake Seliger |
| Selim Ahmed al-Hoss | Selim al-Hoss |
| Selim I | Selim I |
| Selim II | Selim II |
| Selim III | Selim III |
| Selimiye-moskee | Selimiye Mosque |
| Selinunte | Selinunte |
| Selje | Selje |
| Selkirk | Selkirk |
| Sella curulis | Curule chair |
| SellaBand | Sellaband |
| Sellafield | Sellafield |
| Sellapas | Passo Sella |
| Selle Italia | Serramenti PVC Diquigiovanni-Selle Italia |
| Selm | Selm |
| Selma Lagerlöf | Selma Lagerlöf |
| Selnica ob Dravi | Selnica ob Dravi |
| Selous | Selous Game Reserve |
| Selous Scouts | Selous Scouts |
| Selpin | Selpin |
| Selsingen | Selsingen |
| Selsovjet | Selsoviet |
| Selters | Selters |
| Seltisberg | Seltisberg |
| Seltjarnarnes | Seltjarnarnes |
| Seltsjoek | Seljuk |
| Seltsjoeken | Seljuq dynasty |
| Selvagem Grande | Selvagem Grande Island |
| Selzach | Selzach |
| Selzen | Selzen |
| Sem | Shem |
| semafoon | beeper |
| semafoor | semaphore |
| Semana santa | Holy Week |
| Semana Santa in Sevilla | Holy Week in Seville |
| semantiek | semantics |
| semantisch | semantic |
| Semantisch tableau | Method of analytic tableaux |
| Semantisch Web | Semantic Web |
| Semapedia | Semacode |
| Semarang | Semarang |
| Sembach | Sembach |
| Sembrancher | Sembrancher |
| Semele | Semele |
| semelfactief | semelfactive aspect |
| Sementina | Sementina |
| Sementivae | Sementivae |
| Semerchet | Semerkhet |
| Semerovo | Semerovo |
| semester | semester |
