| Scholastik | scholasticism |
| Schotstek | sheet bend |
| Schlamastik | mess muddle shemozzle |
| Schalstein | breeze-block |
| schlammig | miry |
| schwülstig | pompous |
| Schlafsack | sleeping bag |
| Schleswig | Schleswig Sleswick |
| Scholie | scholium |
| Schornstein | chimney |
| Schottin | Scotswoman Scot |
| schartig | burred jagged notched notchy |
| schattig | shadowy shady |
| schlaksig | lanky |
| schlampig | sloppy careless slipshot untidy |
| schlank | slim slender |
| schläfrig | sleepy drowsy dozy somnolently |
| schlüssig | conclusive |
| Echolalie | echolalia |
| Achalasie | achalasia esophageal achalasia |