- The definition of a simile is a figure of speech where two unlike things are compared using the word "like" or "as" followed by a figurative example.
An example of a simile is "He is as hungry as a horse."
simile definition by Webster's New World
Origin: Middle English ; from Classical Latin a likeness ; from neuter of similis, similar
simile definition by American Heritage Dictionary
Origin: Middle English, from Latin, likeness, comparison, from neuter of similis, like; see similar.