| slavina | avalanche |
| slavismo | Slavism |
| Slavko Štimac | Slavko Štimac |
| slavo | Slav |
| Slavo ecclesiastico | Church Slavonic language |
| Slavoj Žižek | Slavoj Žižek |
| Slavonia | Slavonia |
| Slavonski Brod | Slavonski Brod |
| Slavorum Apostoli | Slavorum Apostoli |
| SLAX | SLAX |
| Slayer | Slayer |
| SLBM | Submarine-launched ballistic missile |
| sleale | disaffected |
| slealtà | disloyalty |
| Sleaze metal | Sleaze rock |
| Sleeping with Ghosts | Sleeping with Ghosts |
| Sleeps With Angels | Sleeps with Angels |
| slegare | unbind |
| slegarsi | tear oneself free |
| slegato | incoherent |
| Sleipnir | Sleipnir |
| Slesia | Silesia |
| Slesia ceca | Czech Silesia |
| Slevin - Patto criminale | Lucky Number Slevin |
| Sliabh Liag | Slieve League |
| Slide It in | Slide It In |
| Sliding Doors | Sliding Doors |
| Slieve Bloom | Slieve Bloom Mountains |
| Sligo | County Sligo |
| Slim Borgudd | Slim Borgudd |
| slip | briefs |
| slitta | sled |
| slittare | skid |
| Sliven | Sliven |
| Sloboda | Sloboda |
| Slobodan Milošević | Slobodan Milošević |
| Slobodan Rajković | Slobodan Rajković |
| slogamento | dislocation |
| slogan | slogan |
| Slogan pubblicitari | Advertising slogans |
| Slogan pubblicitario | Advertising slogan |
| slogare | dislocate |
