O
- Occupatio. A rhetorical figure or trope that is used when the object to be described is beyond words or cannot be described in the language proper to it. Also: "A figure in which attention is drawn to something by professing to omit it; an instance of this."
- Oictos. To show pity or compassion.
- Ominatio. A prophecy of evil.
- Onomatopoeia. Words that imitate the sounds, objects, or actions they refer to. (ex. "buzz", "hullabaloo," "bling")
- Opening. First part of discourse. Should gain audiences' attention.
- Optatio. A wish exclaimed.
- Orcos. An oath.
- Oxymoron. A condensed paradox.
Read more about this topic: Glossary Of Rhetoric Terms