| Kontra | con double |
| kontra | against versus |
| kontra- | counter- |
| konträr | contrarian contrary adverse |
| Kontrakt | compact contract |
| Kontrast | contrast |
| Kontraalt | contralto |
| Kontranym | contranym |
| Kontratanz | contra |
| Kontrabass | double bass double-bass |
| Kontrahent | opponent rival counterparty |
| Kontraktur | contracture |
| contra | contra |
| Kontor | office |
| Koncha | apse |
| Konrad | Conrad |
| Konter | counter-attack |
| Konto | account |
| Kontraktion | contraction |
| Kontrapunkt | counterpoint |