A pun is a joke that makes a play on words by using words that sound similar. It can also use different meanings of a word to make the saying funny.
You can also take a look at these examples of puns and puns in literature to see more.
"Examples of Puns for Kids." YourDictionary, n.d. Web. 19 August 2018. <http://examples.yourdictionary.com/examples-of-puns-for-kids.html>.
Examples of Puns for Kids. (n.d.). Retrieved August 19th, 2018, from http://examples.yourdictionary.com/examples-of-puns-for-kids.html