Noun

• S: (n) endorsement, indorsement, blurb (a promotional statement (as found on the dust jackets of books)) "the author got all his friends to write blurbs for his book"
• S: (n) second, secondment, endorsement, indorsement (a speech seconding a motion) "do I hear a second?"
• S: (n) sanction, countenance, endorsement, indorsement, warrant, imprimatur (formal and explicit approval) "a Democrat usually gets the union's endorsement"
• S: (n) endorsement, indorsement (a signature that validates something) "the cashier would not cash the check without an endorsement"
• S: (n) endorsement, indorsement (the act of endorsing) "a star athlete can make a lot of money from endorsements"