What is an oxymoron?

An oxymoron is indeed a figure of speech that combines contradictory terms to create a new meaning or playful effect. Common examples include phrases like "jumbo shrimp" or "bittersweet." This literary device highlights the complexity of a situation or concept by juxtaposing opposing ideas, inviting readers to ponder the nuances of language and the inherent contradictions in life. By combining words that seem contradictory, an oxymoron can evoke strong imagery or a deeper emotional response, showcasing the richness and depth of language.

In contrast, the other choices describe different literary concepts. A character with conflicting traits refers to a character's internal struggles, which might lead to a richer character development but does not pertain specifically to oxymorons. A novel set in the future describes a genre of speculative fiction rather than a figure of speech. Lastly, a repetitive sound device used in poetry refers to techniques like alliteration or assonance, which focus more on sound rather than meaning and do not involve contradictory terms at all. Thus, the choice pertaining to contradictory terms aptly captures the essence of an oxymoron.