| Offenbarungseid | affidavit of means oath of disclosure oath of manifestation |
| Offenbarung | revelation Apocalypse Revelation Revelations |
| Offenherzigkeit | candor |
| offenbaren | bare disclose reveal |
| Öffnungszeit | opening hours |
| Offenlegung | disclosure |
| offene Menge | open set |
| offenbar | obvious manifest obviously apparently evidently apparent |
| öffenbar | openable |
| offenkundig | apparent |
| Offenheit | candor |
| offen zeigen | flaunt |
| offene Frage | moot point |
| offene Linie | open file |
| offener Kern | interior |
| offenes Ende | cliffhanger |
| Öffnungszeiten | opening hours |
| Ofenkartoffel | baked potato |
| hoffnungslos | hopeless |
| offener Brief | open letter |