What is a metaphor?

A metaphor is defined as a figure of speech that makes a direct comparison between two unlike things without using "like" or "as." This distinctive feature sets metaphors apart from similes, which do include such comparative terms. By asserting that one thing is another, metaphors create a more powerful and vivid connection between the two objects, allowing for deeper understanding and insight.

For instance, saying "Time is a thief" implies that time steals moments from our lives, invoking an emotional response and encouraging the reader to think about the passage of time in a more profound way. This ability to suggest an equivalence or shared characteristics enhances the imagery and significance of the ideas being conveyed.

The other choices describe different literary devices or concepts. A pun involves wordplay that relies on similar-sounding words, while a rhetorical question is asked for effect without expecting an answer. The last choice suggests a relationship without context, which does not accurately describe a metaphor's function. Context is often crucial in determining the intended meaning behind a metaphor. Therefore, the definition provided in the correct answer captures the essence of what a metaphor is.