For example:
* "The cat sat on the mat." (repetition of the short "a" sound)
* "The rain in Spain falls mainly on the plain." (repetition of the long "a" sound)
* "Peter Piper picked a peck of pickled peppers." (repetition of the short "e" sound)
Assonance is a literary device used to create a musical effect, emphasize certain words or ideas, and add to the overall rhythm and flow of a piece of writing.