What is a metaphor?

A metaphor is a figure of speech that makes a comparison between two unrelated things, suggesting that one thing is another to highlight similarities between them. This comparison does not use "like" or "as," which sets it apart from similes. For instance, saying "time is a thief" suggests that time, like a thief, can take away moments from our lives, thereby illustrating the impact of time in a vivid and imaginative way.

In contrast, other options do not accurately convey the definition of a metaphor. The choice that refers to a figure of speech that excludes comparison is misleading, as metaphors fundamentally rely on comparisons to convey meaning. The reference to a type of poem with 14 lines pertains to sonnets, which is unrelated to metaphors. Lastly, exaggeration is the essence of hyperbole, not metaphors, as metaphors focus on implied comparisons rather than overstatements. Thus, the correct understanding of a metaphor is essential for effectively analyzing and interpreting language in literature.