- O.D. Subst. Verb
- O.K. Adj. Adv. Inter. Subst. Verb
- Oak Subst. Adj. Verb
- Oar Subst. Verb Adj.
- Oast Subst. Verb Adj.
- Oath Subst. Inter. Adj. Verb
- Obduce Verb
- Obduct Verb Part. Perf. Part. Präs.
- Obdurate Adj. Verb
- Obeah Subst. Verb
- Obelise Verb
- Obelize Verb
- Obey Verb
- Obfuscate Verb Part. Präs. Part. Perf.
- Object Subst. Verb Adj.
- Objectified Part. Perf. Verb
- Objectify Verb Part. Präs. Part. Perf.
- Objurgate Verb
- Obligate Adj. Verb
- Oblige Verb Part. Perf. Part. Präs.
- Oblique Adj. Subst. Adv. Verb
- Obliterate Verb Adj. Part. Perf. Part. Präs.
- Obnubilate Verb
- Obrogate Verb
- Obscure Adj. Verb
- Obscured Part. Perf. Verb
- Observe Verb
- Obsess Verb
- Obsess over Verb
- Obsolete Adj. Verb
- Obstinate Adj. Verb
- Obstruct Verb
- Obtain Verb
- Obtemper Verb
- Obtest Verb
- Obtrude Verb
- Obtund Verb Part. Perf.
- Obturate Verb
- Obvert Verb
- Obviate Verb
- Occasion Subst. Verb Adj.
- Occidentalise Verb
- Occidentalised Part. Perf. Verb
- Occlude Verb Part. Perf. Part. Präs.
- Occult Adj. Subst. Verb
- Occupied Adj. Verb
- Occupy Verb
- Occur Verb
- Occur along Verb
- Occur around Verb
- Occur on Verb
- Occur over Verb
- Ocellate Adj. Verb
- Ocher Subst. Adj. Verb
- Ochre Adj. Subst. Verb
- OCR Subst. Verb Adj.
- Octroy Subst. Verb
- Octuple Adj. Subst. Verb
- Octuplicate Adj. Subst. Verb
- Odorize Verb