| Offenes Mikro | open mic |
| offene Linie | open file |
| offene Menge | open set |
| offene Silbe | open syllable |
| offener Kern | interior |
| offenes Buch | open book |
| offenes Ende | cliffhanger |
| offene Frage | moot point |
| offene Spiele | Open Game |
| offener Fonds | open-end fund |
| Offensive | offensive |
| offener Brief | open letter |
| offensiv | offensive |
| Offenheit | candor |
| Offensivfoul | offensive foul |
| offen zeigen | flaunt |
| offene | open source |
| offene Stelle | opening |
| offenkettig | open-chain |
| offenbar | obvious manifest obviously apparently evidently apparent |
| öffenbar | openable |