The following information is from the Pun FAQtory . A pun is often considered obvious humor, since the person relating it is merely balancing the humor in it on a twist of a word's meaning or sound. Children love this type of obvious humor and can laugh at it without reproachments. It is this envy in adults that subconciously causes them to groan upon hearing a pun. There are different types of puns.
Homophonic puns use like sounds but with different spellings and meanings.
This is also referred to as polyptoton. Examples of homophones are scent and sent, jeans and genes, waive and wave, and buy and bye. Easy to order and fast delivery. Click below for details.