| Ionenkonzentration | ion concentration |
| Ozonkonzentration | ozone concentration |
| Luftionenkonzentration | air ion concentration atmospheric ion concentration |
| Konzentration | concentration |
| Äquivalentkonzentration | normality |
| Ionengenerator | ion generator |
| Längenkontraktion | Lorentz contraction length contraction |
| Schwellenkonzentration | threshold concentration |
| Stoffmengenkonzentration | molar concentration |
| Doppelpenetration | double penetration |
| Kondensation | condensation |
| Konkatenation | concatenation |
| Konsekration | dedication |
| Lorentzkontraktion | Lorentz-Fitzgerald contraction |
| Namenskonvention | naming convention |
| Rekonziliation | reconciliation |
| Wannenkonformation | boat conformation |
| Defenestration | defenestration |
| Demonstration | demonstration |
| Dokumentation | documentation sign |