| Krebs-Zyklus | Krebs cycle |
| Zellzyklus | cell cycle |
| Lebenszyklus | life cycle life history lifecycle lifetime cycle |
| Krebsnebel | Crab Nebula |
| Kreiszahl | pi |
| Kretikus | cretic |
| Citratzyklus | citric acid cycle |
| Rezyklat | recyclate |
| Zyklus | cycle |
| Krebsschere | pincers |
| Krebstier | crustacean |
| Kreischeule | screech owl |
| Kreuz-Ass | ace of clubs |
| Kreuzblume | finial |
| Kreuzzügler | crusader |
| krebsig | cancerous |
| Krebs | crayfish crab cancer Cancer |
| Krebspatient | cancer patient |
| Kreisel | pegtop whip-top whipping-top gyroscope gyro |
| Kreislauf | circulation |