Final answer:
A simile is a comparison between two unlike things using like or as to make a description more vivid or to help the reader understand something better.
Step-by-step explanation:
A simile is a comparison between two unlike things using the words like or as. It is used to make a description more vivid or to help the reader understand something better. For example, in the sentence 'Her eyes sparkled like diamonds,' the comparison is made between the sparkle of her eyes and the shine of diamonds. Similes are commonly used in literature, poetry, and everyday language.
Learn more about Simile