Final answer:
A simile is a comparison that uses 'like' or 'as' to highlight similarities between two things.
Step-by-step explanation:
A comparison that uses 'like' or 'as' is called a simile. A simile compares two things using words such as 'like' or 'as' to highlight similarities between them. For example, 'She runs like a cheetah' or 'His voice is as smooth as butter' are similes, as they compare running to a cheetah and a smooth voice to butter, respectively.
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