| Gewässerökologie | limnology |
| Assyriologie | assyriology |
| Gewässername | hydronym |
| Wasserkanone | water cannon |
| Wasserlinie | waterline water line |
| Wassermelone | watermelon |
| Assyriologe | assyriologist |
| Assyriologin | assyriologist |
| Erotologie | erotology |
| Hemerologie | hemerology |
| Gerontologie | gerontology |
| Venerologie | venereology |
| Autökologie | autecology physiological ecology |
| Synökologie | community ecology synecology |
| Arkologie | arcology |
| Narkologie | narcology |
| Charterkolonie | charter colony |
| Gynäkologie | gynaecology gynecology |
| Esperantologie | Esperantology |
| Garbologie | garbology |