What is Pen/pin?
1.
Two words that people from the South of the United States mispronounce the same way. They always mispronounce ''pen'' as ''pin''. That's an incorrect pronunciation. ''pen'' is supposed to have the ''e'' sound in ''pet'' not the ''i'' sound in ''pit''.
Those Southerners have a problem with not distinguishing ''en/in'' and ''em/im'' and pronounce the words ''hem'' and ''him'', and ''pen'' and ''pin'' the same way which are correctly pronounced differently.
See