Noun
1. a promotional statement (as found on the dust jackets of books);
"the author got all his friends to write blurbs for his book"2. a speech seconding a motion;
"do I hear a second?"3. formal and explicit approval;
"a Democrat usually gets the union's endorsement"4. a signature that validates something;
"the cashier would not cash the check without an endorsement"5. the act of endorsing;
"a star athlete can make a lot of money from endorsements"