Alphabetic O
| 25 | outlandish | adjective | See |
| 26 | opinionated | adjective | See |
| 27 | obsolete | adjective | See |
| 28 | overt | adjective | See |
| 29 | opulent | adjective | See |
| 30 | overwhelming | adjective | See |
| 31 | oblique | adjective | See |
| 32 | onerous | adjective | See |
| 33 | overlap | verb | See |
| 34 | offensive | adjective | See |
| 35 | obscene | adjective | See |
| 36 | ostracize | verb | See |