| Quantenoptik | quantum optics |
| Quantenlogik | quantum logic |
| Quantentopf | quantum well |
| Quantenphysik | quantum physics |
| Quantenpunkt | quantum dot |
| Quantenchemie | quantum chemistry |
| Quanten | big trotters boats clodhoppers |
| Quantencomputer | quantum computer |
| Quantensprung | quantum jump quantum leap breakthrough giant stride |
| quantitativ | quantitative |
| Quadrocopter | quadcopter |
| Quadrokopter | quadcopter |
| Quantelung | quantisation quantization |
| Quantenmechanik | quantum mechanics |
| Quantentheorie | quantum theory |
| Quantil | quantile |
| Quantität | quantity |
| Quantor | quantifier |
| Quarterback | quarterback |
| Quartett | quartet quartette |