Which term refers to a phrase that contains two contradictory words?

An oxymoron is a figure of speech where two contradictory or opposing words are combined to create a unique or thought-provoking expression. This term is often used to convey complex ideas or emotions in a compact way, adding depth and irony to language. For instance, phrases like "deafening silence" or "bittersweet" are classic examples of oxymorons, as they juxtapose contradictory concepts to evoke a specific feeling or insight.

In the context of the other terms, a pun refers to a humorous play on words that exploits the different possible meanings of a word or the similarities in sounding between words, rather than the combination of contradictions. Rhyme involves the repetition of similar sounds in words, typically at the end of lines in poetry, instead of contrasting ideas. Soliloquy is a dramatic device in which a character speaks to themselves, revealing their thoughts to the audience without other characters present; it does not involve contradictory terms.

Therefore, the term that accurately describes a phrase containing two contradictory words is oxymoron.