| Bypassoperation | bypass surgery |
| Zahnoperation | dental operation |
| Bypassventil | wastegate |
| Assertion | assertion affirmation averment |
| Assoziation | association |
| Binäroperator | binary operator |
| Gruppenoperation | group action |
| Herzoperation | heart surgery |
| Kooperation | cooperation co-operation |
| Operation | surgery operation |
| postoperativ | postoperative |
| Perseveration | perseveration |
| Perspiration | perspiration |
| Aspiration | aspiration |
| Präaspiration | preaspiration |
| Assimilation | assimiliation acclimatization acclimation |
| Kassation | cassation abrogation quashing reversal annulment military degradation |
| Klassifikation | classification |
| Abyssopelagial | abyssal zone abyssopelagic deep-sea zone |
| Dissoziation | dissociation |