| oxyhydrogen voltmeter | Knallgasvoltameter |
| oxyhydrogen welding | Wasserstoff-Sauerstoff-Schweissen |
| oxykinoshitalite | Oxykinoshitalith |
| oxymetazoline | Oxymetazolin |
| oxymetry | Oxymetrie |
| oxymoron | Oxymoron |
| oxymorphone | Oxymorphon |
| oxynitride | Oxynitrid |
| Oxynotus | Meersau |
| oxyphenbutazone | Oxyphenbutazon |
| oxyrhine | spitznasig |
| Oxyrhynchus | Oxyrhynchos |
| Oxyria digyna | Alpen-Säuerling |
| oxyria sorrels | Säuerlinge |
| oxysphere | geochemische Planetensphäre |
| oxytocia | Sturzgeburt |
| oxytocic | Wehenmittel |
| oxytocic agent | Wehenmittel |
| oxytocic drug | Wehenmittel |
| oxytocic medicine | Wehenmittel |
| Oxytocin | Oxytocin |
| oxytone | Oxytonon |
| oxyuriasis | Oxyuriasis |
| Oxyurinae | Ruderenten |
| oxyurinae ducks | Ruderenten |
| oxyzephaly | Spitzschädel |
| Oy | OY |
| oy! | he! |
| Oy-Mittelberg | Oy-Mittelberg |
| Oya | Oyá |
| Oya virus | Oya-Virus |
| Oya viruses | Oya-Viren |
| Oyapock River | Oyapock |
| Oyashio class submarine | Oyashio-Klasse |
| Oyashio Current | Oyashio |
| oyes | hört |
| oyez | hört |
| Oymapinar Dam | Oymapınar |
| Oymyakon | Oimjakon |
| Oyo | Oyo |
| Oyo Empire | Oyo |
| Oyo State | Oyo |
| Oyrat | Oiraten |
| oyster | Auster |
| oyster bank | Austernbank |
| oyster bar | Austernbar |
| oyster barrel | Austernfass |
| Oyster Bay | Oyster Bay |
| oyster bed | Austernbank |
| oyster beds | Austernbänke |
| Oyster card | Oyster Card |
| oyster catcher | Austernfischer |
| oyster culture | Austernzucht |
| oyster farm | Austernzucht |
| oyster farming | Austernzucht |
| oyster festival | Austernfest |
| oyster fisher | Austernfischer |
| oyster fisherman | Austernfischer |
| oyster fishing | Austernfischerei |
| oyster fork | Austerngabel |
| oyster gatherer | Austernsammler |
| oyster gatherers | Austernsammler |
| oyster glove | Austernhandschuh |
| oyster gray | austerngrau |
| oyster grey | austerngrau |
| oyster house | Austernbar |
| oyster knife | Austernmesser |
| oyster mushroom | Austernpilz |
| oyster mushrooms | Austernpilze |
| oyster opener | Austernbrecher |
| oyster plant | Haferwurzel |
| oyster saloon | Austernbar |
| Oyster sauce | Austernsauce |
| oyster season | Austernzeit |
| oyster set | Austernbesteck |
| oyster shell | Austernschale |
| oyster soup | Austernsuppe |
| oyster tongs | Austernzange |
| oyster wench | Austernkrämerin |
| oyster white | perlweiß |
| oysterbed | Austernbank |
| oysterbeds | Austernbänke |
| oystercatcher | Austernfischer |
