Source : Webster's Revised Unabridged Dictionary (1913)

Endorsement \En*dorse"ment\, n. [Cf. F. endossement.]
   Same as {Indorsement}.

Source : WordNet®

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