| Kollation | collating collation |
| Kolligation | colligation |
| kollationieren | collate |
| Kollektion | collection |
| Kollision | collision |
| Kollokation | collocation |
| Kollusion | collusion |
| Pollution | nocturnal emission |
| Kopulation | copulation |
| Koalition | coalition |
| Kollagen | collagen |
| Kollegin | colleague |
| Zollunion | customs union |
| Rollator | walker walking frame rollator Zimmer frame |
| Zollstation | custom duties |
| Fellatio | fellatio |
| Spallation | spallation |
| Epilation | epilation |
| Ablation | ablation amputation surgical incision surgical removal |
| Deflation | deflation |