| Agglomeration | agglomeration conurbation |
| Agglomerat | agglomerate conglomerate agglomeration |
| Agglutination | agglutination |
| Aggregation | aggregation |
| Alliteration | alliteration |
| Degeneration | degeneration |
| Föderation | federation |
| Generation | generation |
| Herzoperation | heart surgery |
| Konföderation | confederation |
| Kooperation | cooperation co-operation |
| Moderation | moderation presentation |
| Operation | surgery operation |
| Proliferation | proliferation |
| Regeneration | regeneration |
| Zahnoperation | dental operation |
| Adumbration | adumbration |
| Adoration | adoration |
| Defloration | defloration |
| Exploration | exploration |