noun (n)

• a promotional statement (as found on the dust jackets of books)(noun.communication)

  Synonym:
  blurb, indorsement
  

  source: wordnet30
• a speech seconding a motion(noun.communication)

  Synonym:
  indorsement, second, secondment
  

  source: wordnet30
• formal and explicit approval(noun.communication)

  Example:
  A Democrat usually gets the union's endorsement.
  

  Synonym:
  countenance, imprimatur, indorsement, sanction, warrant
  

  source: wordnet30
• a signature that validates something(noun.communication)

  Example:
  The cashier would not cash the check without an endorsement.
  

  Synonym:
  indorsement
  

  source: wordnet30
• the act of endorsing(noun.act)

  Example:
  A star athlete can make a lot of money from endorsements.
  

  source: wordnet30
• Same as Indorsement.(noun)

  source: webster1913