| Klimastreik | climate strike |
| Kinästhetik | Kinesthetic |
| Sitzstreik | sit-down |
| Klistier | enema |
| Klimahysterie | climate hysteria |
| Klimaschutz | climate change mitigation |
| Klimatechnik | air conditioning technology |
| Klimazone | climatic zone |
| klimatisch | climatic climatical climatically |
| Onomastik | onomastics onomatology |
| Kinästhesie | kinesthesia |
| Plastik | sculpture plastic |
| astrein | cool |
| Livestream | live stream |
| Streik | strike |
| Warnstreik | token strike warning strike |
| Kleckserei | daub |
| Klempnerei | plumbing |
| Käserei | cheesemaking |
| keimfrei | sterile |