| O as in Oboe | O wie Otto |
| O Brother, Where Art Thou_ | O Brother, Where Art Thou_ - Eine Mississippi-Odyssee |
| O Canada | O Canada |
| O chondrite | gewöhnlicher Chondrit |
| O chondrites | gewöhnliche Chondrite |
| O Christmas Tree | O Tannenbaum |
| O come all ye faithful | Adeste Fideles |
| O Come, Little Children | Ihr Kinderlein kommet ein Weihnachtslied) |
| O cup | O-Körbchen |
| O for Oliver | O wie Otto |
| O Grove | O Grove |
| O Happy Day | Heiße Teens aus gutem Haus |
| O How Joyfully | O du fröhliche |
| O League | OFC Champions Cup |
| O Lucky Man! | Der Erfolgreiche |
| o put a spoke in someone's wheel | jemandem einen Strich durch die Rechnung machen |
| O ring | O-Ring |
| O ring fitting tool | Aufziehwerkzeug |
| O Rosal | O Rosal |
| O Sanctissima | O du fröhliche |
| O Shepherd, Speak | O Schäfer, sprich |
| O sole mio | O sole mio |
| O Sul é Meu País | O Sul é o Meu País |
| O Tamaiti | Die Kinder |
| O Tannenbaum | O Tannenbaum |
| O Thou Happy | O du fröhliche |
| O V star | Blauer Zwerg |
| o' my conscience | wahrlich |
| O' Schwarzwald, O' Heimat | Heimkehr ins Glück |
| o'clock | Uhr |
| O'Fallon | O'Fallon |
| O'Hara's Wife | Spuk im Ehebett |
| O'Hare | O'Hare |
| O'nyong-nyong fever | O'nyong-nyong-Fieber |
| O'Rourke of the Royal Mounted | Rote Reiter von Kanada |
| o-anisidine | o-Anisidin |
| O-Bahn Busway | Spurbus |
| o-chlorothiophenol | o-Chlorthiophenol |
| o-coumaric acid | o-Cumarsäure |
| O-cup | O-Körbchen |
| o-dianisidine | o-Dianisidin |
| o-phenylenediamine | o-Phenylendiamin |
| o-phenylenediamine , OPD | o-Phenylendiamin , OPD |
| o-ring | Rundschnurring |
| O-ring gasket | Ring |
| O-ring gaskets | Ringe |
| O-ring seal | O-Dichtring |
| O-ring seals | Rundgummidichtungen |
| O-rings | Dichtungsringe |
| O-seals | Runddichtungen |
| o-toluidine | o-Toluidin |
| O-type tube | O-Typ-Röhre |
| O-type tubes | O-Typ-Röhren |
| O-yatoi gaikokujin | O-yatoi gaikokujin |
| O-Zone | O-Zone |
| O. Henry's Full House | Fünf Perlen |
| o.d. | eine zu starke Dosis nehmen |
| O.K. | einverstanden |
| o.n.o. : or near offer | VB : Verhandlungsbasis |
| O.O.O. | fehlerhaft |
| O.R. | OP |
| O.R. : owner's risk | Eigners Gefahr |
| o.s. : oneself | sich |
| O.S.S. 117 - Terror in Tokyo | Im Visier des Todes |
| O11 | Ocean's Eleven |
| OA | OA |
| Oadby | Oadby |
| oaf | Rohling |
| oafish | dumm |
| oafishly | dumm |
| oafishness | Dummheit |
| oafs | Rohlinge |
| Oahu | Oahu |
| oahu creeper | Oahuastläufer |
| Oahu Island | Oahu Island |
| oak | Eiche |
| oak apple | Gallapfel |
| oak apples | Galläpfel |
| oak artichoke gall wasp | Eichenrosen-Gallwespe |
| oak bark | Eichenlohe |
| oak bark tannage | Eichenlohgerbung |
| oak bark tanning | Eichenlohgerben |
| oak bark tanning in pits | Eichenlohgrubengerbung |
| oak barrel for wine-making | Eichenfass zur Weinherstellung |
| oak bole | Eichenstamm |
| oak brown | eichenbraun |
| oak bush cricket | Eichenschrecke |
| oak bush-cricket | Eichenschrecke |
| oak casket | Eichenholzsarg |
| oak coffin | Eichenholzsarg |
| Oak Creek | Oak Creek |
| oak desk | Eichenschreibtisch |
| oak extract | Eichenholzextrakt |
| oak ferns | Eichenfarne |
| oak forest | Eichenwald |
| oak forests | Eichenwälder |
| Oak fungus | Stieleiche |
| oak furniture | Eichenmobiliar |
| oak gall | Gallapfel |
| oak grove | Eichenhain |
| Oak Harbor | Oak Harbor |
| oak hawk moth | Eichenschwärmer |
| oak hawk-moth | Eichenschwärmer |
| oak hawkmoth | Eichenschwärmer |
| Oak Hook-tip | Eichen-Sichelflügler |
| oak hop gall wasp | Eichenrosen-Gallwespe |
| Oak Island | Oak Island |
| oak larch-cone gall wasp | Eichenrosen-Gallwespe |
| Oak Lawn | Oak Lawn |
| oak leaf | Eichenblatt |
| oak leaf salad | Eichblattsalat |
| oak leaves | Eichenlaub |
| oak log | Eichenstamm |
| oak lungs | Lungenmoos |
| oak milkcap | Eichen-Milchling |
| oak mining bee | Eichen-Erdbiene |
| oak mining-bee | Eichen-Erdbiene |
| Oak Park | Oak Park |
| oak plantage | Eichenschälwald |
| Oak Processionary | Eichenprozessionsspinner |
| oak processionary moth | Eichenprozessionsspinner |
| Oak Ridge | Oak Ridge |
| Oak Ridge National Laboratory | Oak Ridge National Laboratory |
| oak table | eichener Tisch |
| oak tannage | Eichenlohgrubengerbung |
| oak tongue | Ochsenzunge |
| oak tree | Eiche |
| oak trunk | Eichenstamm |
| oak veneer | Eichenfurnier |
| Oak wood | Eichenholz |
| oak wood casket | Eichenholzsarg |
| oak wood coffin | Eichenholzsarg |
| oak wood dust | Eichenholzstaub |
| oak wood wasp | Eichenholzwespe |
| oak wood-wasp | Eichenholzwespe |
| oak woodwasp | Eichenholzwespe |
| oak-lined avenue | Eichenallee |
| oak-wood | Eichenwald |
| oak-wood dust | Eichenholzstaub |
| Oakdale | Oakdale |
| oaken | eichen |
| oaken casket | eichener Sarg |
| oaken coffin | eichener Sarg |
| oaken desk | eichener Schreibtisch |
