| kollidieren | collide clash conflict |
| kollimieren | collimate |
| kollabieren | collapse |
| kolonisieren | colonise |
| kolorieren | color colorize colour |
| collagieren | collage |
| vollieren | volley |
| elidieren | elide |
| konsolidieren | consolidate |
| validieren | validate |
| kandidieren | be a candidate contest run for |
| oxidieren | oxidise oxidize patinate oxygenate |
| korrodieren | corrode |
| kodieren | encode code |
| konkludieren | conclude |
| konzedieren | concede admit |
| kalzinieren | calcine |
| Voltigieren | vaulting equestrian vaulting |
| koalieren | form a coalition |
| koitieren | copulate have sex have sexual intercourse |