1. A signature that validates something
   "the cashier would not cash the check without an indorsement";
   - endorsement
    
2. The act of endorsing
   "a star athlete can make a lot of money from indorsements";
   - endorsement
    
3. Formal and explicit approval
   "a Democrat usually gets the union's indorsement";
   - sanction, countenance, endorsement, warrant, imprimatur
    
4. A speech seconding a motion
   "The proposal received a strong indorsement from the committee member";
   - second, secondment, endorsement
    
5. A promotional statement (as found on the dust jackets of books)
   "the author got all his friends to write indorsements for his book";
   - endorsement, blurb

Derived forms: indorsements

Type of: agreement, approval, commendation, packaging, promo [informal], promotion, promotional material, publicity, signature, support

Encyclopedia: Indorsement