What is the definition of "simile"?

The definition of "simile" is accurately described as a figure of speech comparing two unlike things using "like" or "as." This literary device is often employed to create vivid imagery by highlighting similarities between dissimilar objects. For instance, saying "as brave as a lion" vividly conveys the bravery being compared to the lion's renowned courage.

The other options present different literary concepts. The second option refers to imagery, which can be created through various techniques, not exclusively through similes. The third option describes a paradox, which is distinct from a simile as it involves contradictory ideas rather than a direct comparison. The fourth option refers to an abstract or formal expression of an idea, which does not capture the comparative nature of a simile. Thus, the selected answer encapsulates the essence of how similes function in language.