The terms defamation, libel and slander may be used interchangeably in popular culture, but they are different in important ways. Some of these differences date back to medieval times, but they still have a real impact on how modern-day Americans can speak, write and broadcast. What Is Defamation?Defamation is the umbrella term that describes statements someone makes about another person, which hurt their ability to function in society, says David Partlett, Ada Griggs Candler Professor of Law Emeritus at Emory University.Whether it is true or false, a defamatory statement “impugns someone’s reputation,” says Ken Paulson, director of Middle Tennessee University’s Free Speech Center. “It’s the act of making someone’s reputation less pristine.”What Is Slander? What Is Libel?Slander is a fals...