endorser
noun[C]
uk/ɪnˈdɔːsər/usMARKETING
someone,especiallya well-knownperson, whoappearsin anadvertisementsaying that they use and like aparticularproduct:
Thefootballeris the company's firstmalecelebrityendorser.
someone who makes apublicstatementsaying that theysupportsomeone or something:
Thesenatoris the mostrecentof hiscandidacyendorsers.
endorser of sthHigh-profile endorsers of thecampaignincludethe ForeignSecretaryand thechairmanof theNationalFarmersUnion.
BANKING
thepersonwhosignsthe back of acheque,billofexchange, etc. written out to them inorderto givepermissionfor it to bepaidto someoneelse:
If anotehas beenendorsed, neveragreeto anextensionoftimewithout getting the writtenconsentof the endorser.