| obverse | entsprechend |
| obverse (of truth) | Kehrseite |
| Obverse and reverse | Avers |
| obversely | entsprechend |
| obviate | vermeiden |
| obviate sth. | verhindern |
| obviated | verhindert |
| obviates | beugt vor |
| obviating | vorbeugend |
| obviation | Beseitigung |
| obviations | Beseitigungen |
| obvious | deutlich |
| obvious fact | Gewissheit |
| obviously | bestimmt |
| obviousness | Offensichtlichkeit |
| Obwald | Obwalden |
| Obwalden | Kanton Obwalden |
| OBX Index | OBX Index |
| Obzor | Obsor |
| OC spray | Pfefferspray |
| OCA-DLR Asteroid Survey | ODAS |
| Ocala | Ocala |
| ocarina | Okarina |
| ocarinas | Okarinas |
| Occam | Occam |
| Occam's razor | Ockhams Rasiermesser |
| occasion | Ereignis |
| Occasion for Loving | Anlass zu lieben |
| occasion sth. | etw. verursachen |
| occasion to do sth. | Grund , etw. zu tun |
| occasion wear | Abendgarderobe |
| occasional | gelegentlich |
| occasional appendectomy | Gelegenheitsappendektomie |
| occasional carriage of passengers | Gelegenheitsverkehr |
| occasional customers | Laufkundschaft |
| occasional drinker | Gelegenheitstrinker |
| occasional drinking | Gelegenheitstrinken |
| occasional furniture | Beistellmöbel |
| occasional meeting | gelegentliches Treffen |
| occasional parasite | Gelegenheitsparasit |
| occasional poem | Gelegenheitsgedicht |
| occasional showers | einzelne Schauer |
| occasional smokers | Gelegenheitsraucher |
| occasional smoking | Gelegenheitsrauchen |
| occasional student | Gasthörer |
| occasional tables | Beistelltische |
| occasional user | gelegentlicher Anwender |
| Occasionalism | Okkasionalismus |
| occasionally | ab und zu |
| occasioned | veranlasste |
| occasioning | Anlass seiend |
| occasive amplitude | Abendweite |
| Occident | Abendland |
| Occidental | Abendländer |
| Occidental language | Interlingue |
| Occidental Petroleum | Occidental Petroleum |
| occidentalise | verwestlichen |
| Occidentalism | abendländische Kultur |
| occidentalize | verwestlichen |
| Occidentally | abendländisch |
| occiduous | Abendweite |
| occipital | okzipital |
| occipital artery | Hinterhauptsarterie |
| occipital belly of occipitofrontalis muscle | Venter occipitalis musculi occipitofrontalis |
| occipital bone | Hinterhauptsbein |
| occipital branch | Hinterhauptsast |
| occipital emissary | Hinterhauptsemissarium |
| occipital gyrus | Gyrus occipitalis |
| occipital lobe | Okzipitallappen |
| occipital lobe syndrome | Okzipitallappensyndrom |
| occipital lymph node | Hinterhauptslymphknoten |
| occipital lymph nodes | Hinterhauptslymphknoten |
| occipital nerve | Hinterhauptnerv |
| occipital neuralgia | Okzipitalneuralgie |
| occipital pole of the cerebral hemisphere | Okzipitalpol |
| occipital puncture | Okzipitalpunktion |
| occipital region | Okzipitalregion |
| occipital vein | Hinterhauptsvene |
| occipital veins | Okzipitallappenvenen |
| occipitalis minor muscle | querer Halsmuskel |
| Occipitalis muscle | Musculus occipitalis |
| occipitofrontal muscle | Musculus occipitofrontalis |
| Occipitofrontalis muscle | Musculus occipitofrontalis |
| occipitotemporal gyrus | Gyrus occipitotemporalis |
| occipitothalamic | thalamookzipital |
| occiput | Hinterkopf |
| Occitan | Okzitanisch |
| Occitan language | Okzitanische Sprache |
| Occitania | Okzitanien |
| Occitania national football team | Okzitanische Fußballnationalmannschaft |
| occlude | verdecken |
| occluded | verschlossen |
| occludes | verschließt |
| occluding | verdeckend |
