noun (n)

• a false statement(noun.communication)

  Synonym:
  falsity, untruth
  Antonym:
  true statement, truth
  

  source: wordnet30
• the act of rendering something false as by fraudulent changes (of documents or measures etc.) or counterfeiting(noun.act)

  Synonym:
  falsification
  

  source: wordnet30
• Want of truth or accuracy; an untrue assertion or representation; error; misrepresentation; falsity.(noun)

  source: webster1913