| Extraktion | extraction |
| Extinktion | extinction absorbance |
| Attraktion | attraction |
| Traktion | traction |
| Extrakt | essence extract abstract gist |
| Abstraktion | abstraction |
| Kontraktion | contraction |
| Subtraktion | subtraction |
| Titration | titration |
| Fraktion | parliamentary party faction fraction |
| Interaktion | interaction |
| Erektion | erection |
| Restriktion | restriction |
| Exkretion | excretion |
| Extrapolation | extrapolation |
| Extension | extension |
| Estragon | tarragon dragon's-wort |
| Filtration | filtration |
| Kastration | castration |
| Lustration | lustration |