| Schlüsselkarte | keycard |
| Schlüsselwort | keyword |
| Schlüsselband | lanyard |
| Schlüsselblume | cowslip |
| Schlüsselfrage | key question |
| Schlüsselkind | latchkey kid |
| Schlüsselrolle | key role |
| schlüsselfertig | ready for moving in ready for occupancy |
| Schlussläufer | anchorman |
| Schlußläufer | anchorman |
| Schlüsselring | keyring |
| Schmuggelware | contraband |
| Schmusekatze | pussy-cat |
| Schießscharte | arrow slit balistraria |
| Schlossgarten | castle grounds castle park |
| Schlusslicht | tail light taillight tail ender tail lamp tailender |
| Schlussphase | final phase |
| Schlussverkauf | sale sales |
| Schlüssel | key spanner wrench |
| Schlüsselbein | collarbone clavicle |