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Definitions of libel on the Web:

• a false and malicious publication printed for the purpose of defaming a living person
• print slanderous statements against; "The newspaper was accused of libeling him"
• the written statement of a plaintiff explaining the cause of action (the defamation) and any relief he seeks
  wordnetweb.princeton.edu/perl/webwn

• Defamation—also called calumny, vilification, slander (for transitory statements), and libel (for written, broadcast, or otherwise published words)—is the communication of a statement that makes a claim, expressly stated or implied to be factual, that may give an individual, business, product ...
  en.wikipedia.org/wiki/Libel

• Libel is a verse genre primarily of the Renaissance, descended from the tradition of invective in classical Greek and Roman poetry. Libel is usually expressly political, and balder and coarser than satire. ...
  en.wikipedia.org/wiki/Libel_(poetry)

• Libel is a 1959 British drama film which stars Olivia de Havilland, Dirk Bogarde, Paul Massie, Wilfrid Hyde-White and Robert Morley. The film's screenplay was written by Anatole de Grunwald and Karl Tunberg from a 1935 play of the same name by Edward Wooll, and it was directed by Anthony Asquith.
  en.wikipedia.org/wiki/Libel_(film)

• Libel (Rychnov nad Kněžnou District) is a village and municipality in Rychnov nad Kněžnou District in the Hradec Králové Region of the Czech Republic.
  en.wikipedia.org/wiki/Libel_(Rychnov_nad_Kněžnou_District)

• A written (notably as handbill) or pictorial statement which unjustly seeks to damage someone's reputation; The act or crime of displaying such a statement publicly; To defame someone, especially in a manner that meets the legal definition of libel
  en.wiktionary.org/wiki/libel

• libelous - calumniatory: (used of statements) harmful and often untrue; tending to discredit or malign
  wordnetweb.princeton.edu/perl/webwn

• libelous - defamatory, libeling, referring to something that causes harm to someone's reputation especially with malice or disregard; meeting the legal standards for libel
  en.wiktionary.org/wiki/libelous

• Arnold, FO The Law of damages and compensation. 1913.
  bartelby.org/224/0400.html

• use of print or pictures to harm someone's reputation. Until 1964, a person could prove that they had been libeled simply by showing that the statements in question were incorrect. ...
  www.historycentral.com/Civics/L.html

• Publication of material unjustly injurious to someone's reputation.
  nie.brownsvilleherald.com/newspaperterms.htm

• maliciously damaging someone's reputation in print, as in: When the book came out, the author was sued for libel by three different people.
  www.business-words.com/dictionary/L.html

• Written and published or broadcast statement, which damages someone's character (in a permanent form).
  www.booksites.net/download/chadwickbeech/Glossary.htm