ambassador
noun
am·bas·sa·dor
| \ am-ˈba-sə-dər
, əm-, im-, -ˌdȯr, -ˈbas-dər\
, əm-, im-, -ˌdȯr, -ˈbas-dər\
Definition of ambassador
1
: an official envoy
especially
: a diplomatic agent of the highest rank accredited to a foreign government or sovereign as the resident representative of his or her own government or sovereign or appointed for a special and often temporary diplomatic assignment
She's the American ambassador to Italy.
2a
: an authorized representative or messenger
b
: an unofficial representative
traveling abroad as ambassadors of goodwill