| Kettenbrief | chain letter |
| Kettenbruch | continued fraction |
| Hirtenbrief | pastoral letter |
| Kettenblatt | chainring |
| Kettenkugel | chain shot |
| Kettenlinie | catenary |
| Kettenrad | sprocket |
| Kettensäge | chainsaw |
| Kaperbrief | letter of marque |
| Leserbrief | reader letter reader's letter readers letter |
| Telebrief | mailgram |
| Kettengetriebe | chain drive |
| Kettenkasten | chaincase |
| Ketzerin | heretic |
| ketten | chain |
| Kette geben | get up hit the gas race speed step on the gas all out be at pains break one’s neck empty the tank get stuck into one’s all |
| Kettenhemd | hauberk habergeon haubergeon mail shirt |
| Kettenhund | bandog |
| Kettenpanzer | coat of mail |
| Ketzerei | heresy |