| Schlüsseltechnologie | key technology |
| Spitzentechnologie | high technology |
| Schlüsselrolle | key role |
| Schlüsselschalter | key switch |
| Hochtechnologie | high technology |
| Sprachtechnologie | language technology |
| assistive Technologie | assistive technology |
| Schlüsselblume | cowslip |
| Schlüsselring | keyring |
| Schlüsselanhänger | keychain key chain key fob keyfob |
| Schlüsselbein | collarbone clavicle |
| Schlüsselfrage | key question |
| Schlüsselloch | keyhole keyway |
| Schlüsselperson | key figure key person key player |
| Schulpsychologe | school psychologist |
| schlüsselfertig | ready for moving in ready for occupancy |
| Selenologie | selenology |
| Finanztechnologie | fintech |
| Biotechnologie | biotechnology |
| Nanotechnologie | nanotechnology |